90730601 has 4 divisors (see below), whose sum is σ = 97709892. Its totient is φ = 83751312.

The previous prime is 90730597. The next prime is 90730603. The reversal of 90730601 is 10603709.

It is a happy number.

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 12390400 + 78340201 = 3520^2 + 8851^2 .

It is a cyclic number.

It is not a de Polignac number, because 90730601 - 2² = 90730597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90730603) 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, 3489626 + ... + 3489651.

It is an arithmetic number, because the mean of its divisors is an integer number (24427473).

Almost surely, 2^90730601 is an apocalyptic number.

It is an amenable number.

90730601 is a deficient number, since it is larger than the sum of its proper divisors (6979291).

90730601 is a wasteful number, since it uses less digits than its factorization.

90730601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979290.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 90730601 is about 9525.2612037676. The cubic root of 90730601 is about 449.3498446538.

The spelling of 90730601 in words is "ninety million, seven hundred thirty thousand, six hundred one".