397039772679 has 32 divisors (see below), whose sum is σ = 624337762560. Its totient is φ = 221804179200.

The previous prime is 397039772671. The next prime is 397039772729. The reversal of 397039772679 is 976277930793.

It is not a de Polignac number, because 397039772679 - 2³ = 397039772671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397039772671) 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, 8534062 + ... + 8580459.

It is an arithmetic number, because the mean of its divisors is an integer number (19510555080).

Almost surely, 2^397039772679 is an apocalyptic number.

397039772679 is a deficient number, since it is larger than the sum of its proper divisors (227297989881).

397039772679 is a wasteful number, since it uses less digits than its factorization.

397039772679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17114591.

The product of its (nonzero) digits is 189035532, while the sum is 69.

The spelling of 397039772679 in words is "three hundred ninety-seven billion, thirty-nine million, seven hundred seventy-two thousand, six hundred seventy-nine".