37980731 has 2 divisors, whose sum is σ = 37980732. Its totient is φ = 37980730.

The previous prime is 37980713. The next prime is 37980743. The reversal of 37980731 is 13708973.

It is a happy number.

Together with previous prime (37980713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13708973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37980731 - 2⁶ = 37980667 is a prime.

It is a super-2 number, since 2×37980731² = 2885071854588722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (37982731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18990365 + 18990366.

It is an arithmetic number, because the mean of its divisors is an integer number (18990366).

Almost surely, 2^37980731 is an apocalyptic number.

37980731 is a deficient number, since it is larger than the sum of its proper divisors (1).

37980731 is an equidigital number, since it uses as much as digits as its factorization.

37980731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 37980731 is about 6162.8508825056. The cubic root of 37980731 is about 336.1407048404.

The spelling of 37980731 in words is "thirty-seven million, nine hundred eighty thousand, seven hundred thirty-one".