621970034 has 12 divisors (see below), whose sum is σ = 1085274414. Its totient is φ = 266558544.

The previous prime is 621969991. The next prime is 621970039. The reversal of 621970034 is 430079126.

It can be written as a sum of positive squares in only one way, i.e., 573458809 + 48511225 = 23947^2 + 6965^2 .

It is a super-2 number, since 2×621970034² = 773693446387922312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (621970039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3173219 + ... + 3173414.

Almost surely, 2^621970034 is an apocalyptic number.

621970034 is a deficient number, since it is larger than the sum of its proper divisors (463304380).

621970034 is a wasteful number, since it uses less digits than its factorization.

621970034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346649 (or 6346642 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 621970034 is about 24939.3270558770. The cubic root of 621970034 is about 853.6040895310.

The spelling of 621970034 in words is "six hundred twenty-one million, nine hundred seventy thousand, thirty-four".