621492 has 24 divisors (see below), whose sum is σ = 1473696. Its totient is φ = 203808.

The previous prime is 621473. The next prime is 621521. The reversal of 621492 is 294126.

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 621492.

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, 418 + ... + 1190.

It is an arithmetic number, because the mean of its divisors is an integer number (61404).

2⁶²¹⁴⁹² is an apocalyptic number.

It is an amenable number.

621492 is an abundant number, since it is smaller than the sum of its proper divisors (852204).

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

621492 is a wasteful number, since it uses less digits than its factorization.

621492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 845 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 621492 is about 788.3476390527. The cubic root of 621492 is about 85.3385345680.

The spelling of 621492 in words is "six hundred twenty-one thousand, four hundred ninety-two".