37086421 has 2 divisors, whose sum is σ = 37086422. Its totient is φ = 37086420.

The previous prime is 37086407. The next prime is 37086437. The reversal of 37086421 is 12468073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30404196 + 6682225 = 5514^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 37086421 - 2⁷ = 37086293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37086121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18543210 + 18543211.

It is an arithmetic number, because the mean of its divisors is an integer number (18543211).

Almost surely, 2^37086421 is an apocalyptic number.

It is an amenable number.

37086421 is a deficient number, since it is larger than the sum of its proper divisors (1).

37086421 is an equidigital number, since it uses as much as digits as its factorization.

37086421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 37086421 is about 6089.8621495072. The cubic root of 37086421 is about 333.4814194240.

The spelling of 37086421 in words is "thirty-seven million, eighty-six thousand, four hundred twenty-one".