860344457 has 16 divisors (see below), whose sum is σ = 1021473792. Its totient is φ = 709076160.

The previous prime is 860344423. The next prime is 860344469. The reversal of 860344457 is 754443068.

It is a cyclic number.

It is not a de Polignac number, because 860344457 - 2⁶ = 860344393 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (860344057) 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, 21443 + ... + 46695.

It is an arithmetic number, because the mean of its divisors is an integer number (63842112).

Almost surely, 2^860344457 is an apocalyptic number.

It is an amenable number.

860344457 is a deficient number, since it is larger than the sum of its proper divisors (161129335).

860344457 is a wasteful number, since it uses less digits than its factorization.

860344457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25448.

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 860344457 is about 29331.6289523784. The cubic root of 860344457 is about 951.0954886108.

The spelling of 860344457 in words is "eight hundred sixty million, three hundred forty-four thousand, four hundred fifty-seven".