90647007 has 16 divisors (see below), whose sum is σ = 136104960. Its totient is φ = 53164800.

The previous prime is 90646999. The next prime is 90647021. The reversal of 90647007 is 70074609.

It is not a de Polignac number, because 90647007 - 2³ = 90646999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90645007) 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 15 ways as a sum of consecutive naturals, for example, 43282 + ... + 45327.

It is an arithmetic number, because the mean of its divisors is an integer number (8506560).

Almost surely, 2^90647007 is an apocalyptic number.

90647007 is a deficient number, since it is larger than the sum of its proper divisors (45457953).

90647007 is a wasteful number, since it uses less digits than its factorization.

90647007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88654.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 90647007 is about 9520.8721764343. The cubic root of 90647007 is about 449.2118004786.

The spelling of 90647007 in words is "ninety million, six hundred forty-seven thousand, seven".