621171472 has 20 divisors (see below), whose sum is σ = 1221484816. Its totient is φ = 305949600.

The previous prime is 621171469. The next prime is 621171493. The reversal of 621171472 is 274171126.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288654 + ... + 290797.

Almost surely, 2^621171472 is an apocalyptic number.

It is an amenable number.

621171472 is a deficient number, since it is larger than the sum of its proper divisors (600313344).

621171472 is a wasteful number, since it uses less digits than its factorization.

621171472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579526 (or 579520 counting only the distinct ones).

The product of its digits is 4704, while the sum is 31.

The square root of 621171472 is about 24923.3118184562. The cubic root of 621171472 is about 853.2386122618.

The spelling of 621171472 in words is "six hundred twenty-one million, one hundred seventy-one thousand, four hundred seventy-two".