628062431 has 2 divisors, whose sum is σ = 628062432. Its totient is φ = 628062430.

The previous prime is 628062427. The next prime is 628062443. The reversal of 628062431 is 134260826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628062431 - 2² = 628062427 is a prime.

It is a super-2 number, since 2×628062431² = 788924834467259522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628062401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314031215 + 314031216.

It is an arithmetic number, because the mean of its divisors is an integer number (314031216).

Almost surely, 2^628062431 is an apocalyptic number.

628062431 is a deficient number, since it is larger than the sum of its proper divisors (1).

628062431 is an equidigital number, since it uses as much as digits as its factorization.

628062431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 628062431 is about 25061.1737753841. The cubic root of 628062431 is about 856.3821476046.

The spelling of 628062431 in words is "six hundred twenty-eight million, sixty-two thousand, four hundred thirty-one".