897578424 has 24 divisors (see below), whose sum is σ = 2430941760. Its totient is φ = 299192784.

The previous prime is 897578401. The next prime is 897578447. The reversal of 897578424 is 424875798.

It is a happy number.

897578424 is a `hidden beast` number, since 89 + 75 + 78 + 424 = 666.

It is an interprime number because it is at equal distance from previous prime (897578401) and next prime (897578447).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6233112 + ... + 6233255.

It is an arithmetic number, because the mean of its divisors is an integer number (101289240).

Almost surely, 2^897578424 is an apocalyptic number.

It is an amenable number.

897578424 is an abundant number, since it is smaller than the sum of its proper divisors (1533363336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897578424 is a wasteful number, since it uses less digits than its factorization.

897578424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12466379 (or 12466372 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 897578424 is about 29959.6132151268. The cubic root of 897578424 is about 964.6226786898.

The spelling of 897578424 in words is "eight hundred ninety-seven million, five hundred seventy-eight thousand, four hundred twenty-four".