3934297947 has 32 divisors (see below), whose sum is σ = 6035281920. Its totient is φ = 2263196160.

The previous prime is 3934297921. The next prime is 3934297951. The reversal of 3934297947 is 7497924393.

It is not a de Polignac number, because 3934297947 - 2⁶ = 3934297883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (3934297247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35448 + ... + 95525.

It is an arithmetic number, because the mean of its divisors is an integer number (188602560).

Almost surely, 2^3934297947 is an apocalyptic number.

3934297947 is a deficient number, since it is larger than the sum of its proper divisors (2100983973).

3934297947 is a wasteful number, since it uses less digits than its factorization.

3934297947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131043.

The product of its digits is 10287648, while the sum is 57.

The square root of 3934297947 is about 62723.9822316791. The cubic root of 3934297947 is about 1578.6617342666.

The spelling of 3934297947 in words is "three billion, nine hundred thirty-four million, two hundred ninety-seven thousand, nine hundred forty-seven".