37972973 has 2 divisors, whose sum is σ = 37972974. Its totient is φ = 37972972.

The previous prime is 37972939. The next prime is 37972997. The reversal of 37972973 is 37927973.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20775364 + 17197609 = 4558^2 + 4147^2 .

It is a cyclic number.

It is not a de Polignac number, because 37972973 - 2¹² = 37968877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37972903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18986486 + 18986487.

It is an arithmetic number, because the mean of its divisors is an integer number (18986487).

Almost surely, 2^37972973 is an apocalyptic number.

It is an amenable number.

37972973 is a deficient number, since it is larger than the sum of its proper divisors (1).

37972973 is an equidigital number, since it uses as much as digits as its factorization.

37972973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 500094, while the sum is 47.

The square root of 37972973 is about 6162.2214338662. The cubic root of 37972973 is about 336.1178164169.

The spelling of 37972973 in words is "thirty-seven million, nine hundred seventy-two thousand, nine hundred seventy-three".