38622457 has 2 divisors, whose sum is σ = 38622458. Its totient is φ = 38622456.

The previous prime is 38622449. The next prime is 38622481. The reversal of 38622457 is 75422683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35295481 + 3326976 = 5941^2 + 1824^2 .

It is a cyclic number.

It is not a de Polignac number, because 38622457 - 2³ = 38622449 is a prime.

It is not a weakly prime, because it can be changed into another prime (38622407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19311228 + 19311229.

It is an arithmetic number, because the mean of its divisors is an integer number (19311229).

Almost surely, 2^38622457 is an apocalyptic number.

It is an amenable number.

38622457 is a deficient number, since it is larger than the sum of its proper divisors (1).

38622457 is an equidigital number, since it uses as much as digits as its factorization.

38622457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 38622457 is about 6214.6968550365. The cubic root of 38622457 is about 338.0232964814.

The spelling of 38622457 in words is "thirty-eight million, six hundred twenty-two thousand, four hundred fifty-seven".