621097896 has 32 divisors (see below), whose sum is σ = 1602835200. Its totient is φ = 200353920.

The previous prime is 621097849. The next prime is 621097933. The reversal of 621097896 is 698790126.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416661 + ... + 418148.

It is an arithmetic number, because the mean of its divisors is an integer number (50088600).

Almost surely, 2^621097896 is an apocalyptic number.

It is an amenable number.

621097896 is an abundant number, since it is smaller than the sum of its proper divisors (981737304).

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

621097896 is a wasteful number, since it uses less digits than its factorization.

621097896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834849 (or 834845 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 621097896 is about 24921.8357269283. The cubic root of 621097896 is about 853.2049230334.

The spelling of 621097896 in words is "six hundred twenty-one million, ninety-seven thousand, eight hundred ninety-six".