858464 has 24 divisors (see below), whose sum is σ = 1711080. Its totient is φ = 423936.

The previous prime is 858463. The next prime is 858467. The reversal of 858464 is 464858.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 858464.

It is not an unprimeable number, because it can be changed into a prime (858463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4352 + ... + 4544.

It is an arithmetic number, because the mean of its divisors is an integer number (71295).

2⁸⁵⁸⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

858464 is a deficient number, since it is larger than the sum of its proper divisors (852616).

858464 is a wasteful number, since it uses less digits than its factorization.

858464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 334 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 858464 is about 926.5333237396. The cubic root of 858464 is about 95.0402045894.

The spelling of 858464 in words is "eight hundred fifty-eight thousand, four hundred sixty-four".