90401207 has 16 divisors (see below), whose sum is σ = 102389280. Its totient is φ = 79228800.

The previous prime is 90401203. The next prime is 90401209. The reversal of 90401207 is 70210409.

It is a cyclic number.

It is not a de Polignac number, because 90401207 - 2² = 90401203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90401203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21032 + ... + 24962.

It is an arithmetic number, because the mean of its divisors is an integer number (6399330).

Almost surely, 2^90401207 is an apocalyptic number.

90401207 is a deficient number, since it is larger than the sum of its proper divisors (11988073).

90401207 is a wasteful number, since it uses less digits than its factorization.

90401207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 90401207 is about 9507.9549325815. The cubic root of 90401207 is about 448.8054027494.

The spelling of 90401207 in words is "ninety million, four hundred one thousand, two hundred seven".