90660037 has 4 divisors (see below), whose sum is σ = 97633900. Its totient is φ = 83686176.

The previous prime is 90660029. The next prime is 90660041. The reversal of 90660037 is 73006609.

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 40335201 + 50324836 = 6351^2 + 7094^2 .

It is a cyclic number.

It is not a de Polignac number, because 90660037 - 2³ = 90660029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90659990 and 90660008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90660007) 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, 3486912 + ... + 3486937.

It is an arithmetic number, because the mean of its divisors is an integer number (24408475).

Almost surely, 2^90660037 is an apocalyptic number.

It is an amenable number.

90660037 is a deficient number, since it is larger than the sum of its proper divisors (6973863).

90660037 is a wasteful number, since it uses less digits than its factorization.

90660037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973862.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 90660037 is about 9521.5564378940. The cubic root of 90660037 is about 449.2333233415.

The spelling of 90660037 in words is "ninety million, six hundred sixty thousand, thirty-seven".