901625789 has 2 divisors, whose sum is σ = 901625790. Its totient is φ = 901625788.

The previous prime is 901625779. The next prime is 901625807. The reversal of 901625789 is 987526109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770340025 + 131285764 = 27755^2 + 11458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-901625789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901625729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450812894 + 450812895.

It is an arithmetic number, because the mean of its divisors is an integer number (450812895).

Almost surely, 2^901625789 is an apocalyptic number.

It is an amenable number.

901625789 is a deficient number, since it is larger than the sum of its proper divisors (1).

901625789 is an equidigital number, since it uses as much as digits as its factorization.

901625789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 901625789 is about 30027.0842573834. The cubic root of 901625789 is about 966.0703986033.

The spelling of 901625789 in words is "nine hundred one million, six hundred twenty-five thousand, seven hundred eighty-nine".