42863697 has 24 divisors (see below), whose sum is σ = 65841984. Its totient is φ = 26810784.

The previous prime is 42863659. The next prime is 42863699. The reversal of 42863697 is 79636824.

42863697 is a `hidden beast` number, since 4 + 2 + 8 + 636 + 9 + 7 = 666.

It is not a de Polignac number, because 42863697 - 2⁶ = 42863633 is a prime.

It is a super-3 number, since 3×42863697³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42863699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9018 + ... + 12924.

It is an arithmetic number, because the mean of its divisors is an integer number (2743416).

Almost surely, 2^42863697 is an apocalyptic number.

It is an amenable number.

42863697 is a deficient number, since it is larger than the sum of its proper divisors (22978287).

42863697 is a wasteful number, since it uses less digits than its factorization.

42863697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989 (or 3986 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 42863697 is about 6547.0372688721. The cubic root of 42863697 is about 349.9692408343.

The spelling of 42863697 in words is "forty-two million, eight hundred sixty-three thousand, six hundred ninety-seven".