621674952 has 16 divisors (see below), whose sum is σ = 1554187440. Its totient is φ = 207224976.

The previous prime is 621674947. The next prime is 621674957. The reversal of 621674952 is 259476126.

It is an interprime number because it is at equal distance from previous prime (621674947) and next prime (621674957).

It is not an unprimeable number, because it can be changed into a prime (621674957) 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, 12951538 + ... + 12951585.

It is an arithmetic number, because the mean of its divisors is an integer number (97136715).

Almost surely, 2^621674952 is an apocalyptic number.

It is an amenable number.

621674952 is an abundant number, since it is smaller than the sum of its proper divisors (932512488).

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

621674952 is a wasteful number, since it uses less digits than its factorization.

621674952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25903132 (or 25903128 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 621674952 is about 24933.4103563873. The cubic root of 621674952 is about 853.4690760349.

The spelling of 621674952 in words is "six hundred twenty-one million, six hundred seventy-four thousand, nine hundred fifty-two".