36972457 has 2 divisors, whose sum is σ = 36972458. Its totient is φ = 36972456.

The previous prime is 36972451. The next prime is 36972479. The reversal of 36972457 is 75427963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33860761 + 3111696 = 5819^2 + 1764^2 .

It is a cyclic number.

It is not a de Polignac number, because 36972457 - 2³ = 36972449 is a prime.

It is not a weakly prime, because it can be changed into another prime (36972451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18486228 + 18486229.

It is an arithmetic number, because the mean of its divisors is an integer number (18486229).

Almost surely, 2^36972457 is an apocalyptic number.

It is an amenable number.

36972457 is a deficient number, since it is larger than the sum of its proper divisors (1).

36972457 is an equidigital number, since it uses as much as digits as its factorization.

36972457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 43.

The square root of 36972457 is about 6080.4980881503. The cubic root of 36972457 is about 333.1394805073.

The spelling of 36972457 in words is "thirty-six million, nine hundred seventy-two thousand, four hundred fifty-seven".