36731623 has 2 divisors, whose sum is σ = 36731624. Its totient is φ = 36731622.

The previous prime is 36731609. The next prime is 36731633. The reversal of 36731623 is 32613763.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36731623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36731633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18365811 + 18365812.

It is an arithmetic number, because the mean of its divisors is an integer number (18365812).

Almost surely, 2^36731623 is an apocalyptic number.

36731623 is a deficient number, since it is larger than the sum of its proper divisors (1).

36731623 is an equidigital number, since it uses as much as digits as its factorization.

36731623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 31.

The square root of 36731623 is about 6060.6619275455. The cubic root of 36731623 is about 332.4145611218.

The spelling of 36731623 in words is "thirty-six million, seven hundred thirty-one thousand, six hundred twenty-three".