3279494157 has 16 divisors (see below), whose sum is σ = 4631846400. Its totient is φ = 2056845312.

The previous prime is 3279494131. The next prime is 3279494159. The reversal of 3279494157 is 7514949723.

It is a happy number.

It is not a de Polignac number, because 3279494157 - 2⁸ = 3279493901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3279494159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119844 + ... + 144642.

It is an arithmetic number, because the mean of its divisors is an integer number (289490400).

Almost surely, 2^3279494157 is an apocalyptic number.

It is an amenable number.

3279494157 is a deficient number, since it is larger than the sum of its proper divisors (1352352243).

3279494157 is a wasteful number, since it uses less digits than its factorization.

3279494157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27412.

The product of its digits is 1905120, while the sum is 51.

The square root of 3279494157 is about 57266.8678818739. The cubic root of 3279494157 is about 1485.7153845490.

The spelling of 3279494157 in words is "three billion, two hundred seventy-nine million, four hundred ninety-four thousand, one hundred fifty-seven".