2978101 has 4 divisors (see below), whose sum is σ = 3403552. Its totient is φ = 2552652.

The previous prime is 2978089. The next prime is 2978113. The reversal of 2978101 is 1018792.

2978101 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2978089) and next prime (2978113).

It is a cyclic number.

It is not a de Polignac number, because 2978101 - 2¹¹ = 2976053 is a prime.

It is an Ulam number.

It is a Duffinian number.

2978101 is strictly pandigital in base 8.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2978101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212715 + ... + 212728.

It is an arithmetic number, because the mean of its divisors is an integer number (850888).

2^2978101 is an apocalyptic number.

It is an amenable number.

2978101 is a deficient number, since it is larger than the sum of its proper divisors (425451).

2978101 is an equidigital number, since it uses as much as digits as its factorization.

2978101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425450.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2978101 is about 1725.7175319269. The cubic root of 2978101 is about 143.8731682865.

The spelling of 2978101 in words is "two million, nine hundred seventy-eight thousand, one hundred one".