621679480 has 16 divisors (see below), whose sum is σ = 1398778920. Its totient is φ = 248671776.

The previous prime is 621679463. The next prime is 621679483. The reversal of 621679480 is 84976126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621679483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7770954 + ... + 7771033.

Almost surely, 2^621679480 is an apocalyptic number.

It is an amenable number.

621679480 is an abundant number, since it is smaller than the sum of its proper divisors (777099440).

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

621679480 is a wasteful number, since it uses less digits than its factorization.

621679480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15541998 (or 15541994 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 621679480 is about 24933.5011580805. The cubic root of 621679480 is about 853.4711481245.

The spelling of 621679480 in words is "six hundred twenty-one million, six hundred seventy-nine thousand, four hundred eighty".