2981607 has 4 divisors (see below), whose sum is σ = 3975480. Its totient is φ = 1987736.

The previous prime is 2981597. The next prime is 2981653. The reversal of 2981607 is 7061892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2981607 - 2⁶ = 2981543 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981677) 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, 496932 + ... + 496937.

It is an arithmetic number, because the mean of its divisors is an integer number (993870).

2^2981607 is an apocalyptic number.

2981607 is a deficient number, since it is larger than the sum of its proper divisors (993873).

2981607 is an equidigital number, since it uses as much as digits as its factorization.

2981607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993872.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2981607 is about 1726.7330424822. The cubic root of 2981607 is about 143.9296048673.

The spelling of 2981607 in words is "two million, nine hundred eighty-one thousand, six hundred seven".