920730623 has 2 divisors, whose sum is σ = 920730624. Its totient is φ = 920730622.

The previous prime is 920730617. The next prime is 920730637. The reversal of 920730623 is 326037029.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920730623 - 2²² = 916536319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 920730623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920730323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460365311 + 460365312.

It is an arithmetic number, because the mean of its divisors is an integer number (460365312).

Almost surely, 2^920730623 is an apocalyptic number.

920730623 is a deficient number, since it is larger than the sum of its proper divisors (1).

920730623 is an equidigital number, since it uses as much as digits as its factorization.

920730623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 920730623 is about 30343.5433494508. The cubic root of 920730623 is about 972.8462203279.

The spelling of 920730623 in words is "nine hundred twenty million, seven hundred thirty thousand, six hundred twenty-three".