90901007 has 8 divisors (see below), whose sum is σ = 91807536. Its totient is φ = 89998272.

The previous prime is 90901003. The next prime is 90901039. The reversal of 90901007 is 70010909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90901007 - 2² = 90901003 is a prime.

It is a super-2 number, since 2×90901007² = 16525986147228098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90901001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74333 + ... + 75545.

It is an arithmetic number, because the mean of its divisors is an integer number (11475942).

Almost surely, 2^90901007 is an apocalyptic number.

90901007 is a deficient number, since it is larger than the sum of its proper divisors (906529).

90901007 is a wasteful number, since it uses less digits than its factorization.

90901007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 90901007 is about 9534.2019592622. The cubic root of 90901007 is about 449.6309847205.

The spelling of 90901007 in words is "ninety million, nine hundred one thousand, seven".