3978274501 has 4 divisors (see below), whose sum is σ = 4002096672. Its totient is φ = 3954452332.

The previous prime is 3978274493. The next prime is 3978274507. The reversal of 3978274501 is 1054728793.

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 a cyclic number.

It is not a de Polignac number, because 3978274501 - 2³ = 3978274493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978274507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11910835 + ... + 11911168.

It is an arithmetic number, because the mean of its divisors is an integer number (1000524168).

Almost surely, 2^3978274501 is an apocalyptic number.

It is an amenable number.

3978274501 is a deficient number, since it is larger than the sum of its proper divisors (23822171).

3978274501 is a wasteful number, since it uses less digits than its factorization.

3978274501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23822170.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 3978274501 is about 63073.5642008599. The cubic root of 3978274501 is about 1584.5219097623.

The spelling of 3978274501 in words is "three billion, nine hundred seventy-eight million, two hundred seventy-four thousand, five hundred one".