90730307 has 4 divisors (see below), whose sum is σ = 90765480. Its totient is φ = 90695136.

The previous prime is 90730303. The next prime is 90730333. The reversal of 90730307 is 70303709.

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

It is a cyclic number.

It is not a de Polignac number, because 90730307 - 2² = 90730303 is a prime.

It is a super-3 number, since 3×90730307³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90730307.

It is not an unprimeable number, because it can be changed into a prime (90730303) 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, 13382 + ... + 18987.

It is an arithmetic number, because the mean of its divisors is an integer number (22691370).

Almost surely, 2^90730307 is an apocalyptic number.

90730307 is a deficient number, since it is larger than the sum of its proper divisors (35173).

90730307 is a wasteful number, since it uses less digits than its factorization.

90730307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35172.

The product of its (nonzero) digits is 3969, while the sum is 29.

The square root of 90730307 is about 9525.2457711074. The cubic root of 90730307 is about 449.3493593012.

The spelling of 90730307 in words is "ninety million, seven hundred thirty thousand, three hundred seven".