90308007 has 32 divisors (see below), whose sum is σ = 141504000. Its totient is φ = 56764800.

The previous prime is 90307957. The next prime is 90308011. The reversal of 90308007 is 70080309.

It is a happy number.

It is not a de Polignac number, because 90308007 - 2⁷ = 90307879 is a prime.

It is a super-2 number, since 2×90308007² = 16311072256624098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90308077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205494 + ... + 205932.

It is an arithmetic number, because the mean of its divisors is an integer number (4422000).

Almost surely, 2^90308007 is an apocalyptic number.

90308007 is a deficient number, since it is larger than the sum of its proper divisors (51195993).

90308007 is a wasteful number, since it uses less digits than its factorization.

90308007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 90308007 is about 9503.0525095887. The cubic root of 90308007 is about 448.6511162905.

The spelling of 90308007 in words is "ninety million, three hundred eight thousand, seven".