912640073 has 2 divisors, whose sum is σ = 912640074. Its totient is φ = 912640072.

The previous prime is 912640061. The next prime is 912640111. The reversal of 912640073 is 370046219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478209424 + 434430649 = 21868^2 + 20843^2 .

It is a cyclic number.

It is not a de Polignac number, because 912640073 - 2¹⁴ = 912623689 is a prime.

It is not a weakly prime, because it can be changed into another prime (912640273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456320036 + 456320037.

It is an arithmetic number, because the mean of its divisors is an integer number (456320037).

Almost surely, 2^912640073 is an apocalyptic number.

It is an amenable number.

912640073 is a deficient number, since it is larger than the sum of its proper divisors (1).

912640073 is an equidigital number, since it uses as much as digits as its factorization.

912640073 is an evil number, because the sum of its binary digits is even.

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

The square root of 912640073 is about 30209.9333498106. The cubic root of 912640073 is about 969.9883347873.

The spelling of 912640073 in words is "nine hundred twelve million, six hundred forty thousand, seventy-three".