621270652 has 6 divisors (see below), whose sum is σ = 1087223648. Its totient is φ = 310635324.

The previous prime is 621270631. The next prime is 621270673. The reversal of 621270652 is 256072126.

It is an interprime number because it is at equal distance from previous prime (621270631) and next prime (621270673).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77658828 + ... + 77658835.

Almost surely, 2^621270652 is an apocalyptic number.

It is an amenable number.

621270652 is a deficient number, since it is larger than the sum of its proper divisors (465952996).

621270652 is a wasteful number, since it uses less digits than its factorization.

621270652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155317667 (or 155317665 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 621270652 is about 24925.3014425102. The cubic root of 621270652 is about 853.2840209270.

The spelling of 621270652 in words is "six hundred twenty-one million, two hundred seventy thousand, six hundred fifty-two".