37972349 has 2 divisors, whose sum is σ = 37972350. Its totient is φ = 37972348.

The previous prime is 37972343. The next prime is 37972391. The reversal of 37972349 is 94327973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24700900 + 13271449 = 4970^2 + 3643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37972349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37972343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18986174 + 18986175.

It is an arithmetic number, because the mean of its divisors is an integer number (18986175).

Almost surely, 2^37972349 is an apocalyptic number.

It is an amenable number.

37972349 is a deficient number, since it is larger than the sum of its proper divisors (1).

37972349 is an equidigital number, since it uses as much as digits as its factorization.

37972349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The square root of 37972349 is about 6162.1708025663. The cubic root of 37972349 is about 336.1159752946.

The spelling of 37972349 in words is "thirty-seven million, nine hundred seventy-two thousand, three hundred forty-nine".