397561002097 has 16 divisors (see below), whose sum is σ = 462118549504. Its totient is φ = 334951848000.

The previous prime is 397561002089. The next prime is 397561002107. The reversal of 397561002097 is 790200165793.

It is not a de Polignac number, because 397561002097 - 2³ = 397561002089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397561002097.

It is not an unprimeable number, because it can be changed into a prime (397561002017) 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, 311647 + ... + 944587.

It is an arithmetic number, because the mean of its divisors is an integer number (28882409344).

Almost surely, 2^397561002097 is an apocalyptic number.

It is an amenable number.

397561002097 is a deficient number, since it is larger than the sum of its proper divisors (64557547407).

397561002097 is a wasteful number, since it uses less digits than its factorization.

397561002097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634480.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 397561002097 in words is "three hundred ninety-seven billion, five hundred sixty-one million, two thousand, ninety-seven".