37346681 has 2 divisors, whose sum is σ = 37346682. Its totient is φ = 37346680.

The previous prime is 37346663. The next prime is 37346707. The reversal of 37346681 is 18664373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34164025 + 3182656 = 5845^2 + 1784^2 .

It is a cyclic number.

It is not a de Polignac number, because 37346681 - 2²² = 33152377 is a prime.

It is a super-2 number, since 2×37346681² = 2789549163431522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (37346651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18673340 + 18673341.

It is an arithmetic number, because the mean of its divisors is an integer number (18673341).

Almost surely, 2^37346681 is an apocalyptic number.

It is an amenable number.

37346681 is a deficient number, since it is larger than the sum of its proper divisors (1).

37346681 is an equidigital number, since it uses as much as digits as its factorization.

37346681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 37346681 is about 6111.1930913693. The cubic root of 37346681 is about 334.2596884361.

The spelling of 37346681 in words is "thirty-seven million, three hundred forty-six thousand, six hundred eighty-one".