897407628 has 48 divisors (see below), whose sum is σ = 2387679840. Its totient is φ = 259881984.

The previous prime is 897407597. The next prime is 897407633. The reversal of 897407628 is 826704798.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166543 + ... + 171846.

It is an arithmetic number, because the mean of its divisors is an integer number (49743330).

Almost surely, 2^897407628 is an apocalyptic number.

It is an amenable number.

897407628 is an abundant number, since it is smaller than the sum of its proper divisors (1490272212).

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

897407628 is a wasteful number, since it uses less digits than its factorization.

897407628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338426 (or 338424 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 897407628 is about 29956.7626421815. The cubic root of 897407628 is about 964.5614902960.

The spelling of 897407628 in words is "eight hundred ninety-seven million, four hundred seven thousand, six hundred twenty-eight".