397084635 has 12 divisors (see below), whose sum is σ = 688280112. Its totient is φ = 211778448.

The previous prime is 397084621. The next prime is 397084637. The reversal of 397084635 is 536480793.

397084635 is a `hidden beast` number, since 3 + 9 + 7 + 0 + 8 + 4 + 635 = 666.

It is not a de Polignac number, because 397084635 - 2⁷ = 397084507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8824103 = 397084635 / (3 + 9 + 7 + 0 + 8 + 4 + 6 + 3 + 5).

It is not an unprimeable number, because it can be changed into a prime (397084637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4412007 + ... + 4412096.

It is an arithmetic number, because the mean of its divisors is an integer number (57356676).

Almost surely, 2^397084635 is an apocalyptic number.

397084635 is a deficient number, since it is larger than the sum of its proper divisors (291195477).

397084635 is a wasteful number, since it uses less digits than its factorization.

397084635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824114 (or 8824111 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 397084635 is about 19926.9825864329. The cubic root of 397084635 is about 735.0118837451.

The spelling of 397084635 in words is "three hundred ninety-seven million, eighty-four thousand, six hundred thirty-five".