37616081 has 4 divisors (see below), whose sum is σ = 37644852. Its totient is φ = 37587312.

The previous prime is 37616071. The next prime is 37616083. The reversal of 37616081 is 18061673.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33535681 + 4080400 = 5791^2 + 2020^2 .

It is a cyclic number.

It is not a de Polignac number, because 37616081 - 2¹⁰ = 37615057 is a prime.

It is a super-2 number, since 2×37616081² = 2829939099597122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (37616083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12326 + ... + 15071.

It is an arithmetic number, because the mean of its divisors is an integer number (9411213).

Almost surely, 2^37616081 is an apocalyptic number.

It is an amenable number.

37616081 is a deficient number, since it is larger than the sum of its proper divisors (28771).

37616081 is a wasteful number, since it uses less digits than its factorization.

37616081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28770.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 37616081 is about 6133.1950074981. The cubic root of 37616081 is about 335.0614901606.

The spelling of 37616081 in words is "thirty-seven million, six hundred sixteen thousand, eighty-one".