90440967 has 8 divisors (see below), whose sum is σ = 120893296. Its totient is φ = 60141312.

The previous prime is 90440953. The next prime is 90440989. The reversal of 90440967 is 76904409.

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

It is not a de Polignac number, because 90440967 - 2⁴ = 90440951 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 (90440947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36778 + ... + 39159.

It is an arithmetic number, because the mean of its divisors is an integer number (15111662).

Almost surely, 2^90440967 is an apocalyptic number.

90440967 is a deficient number, since it is larger than the sum of its proper divisors (30452329).

90440967 is a wasteful number, since it uses less digits than its factorization.

90440967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76337.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 90440967 is about 9510.0455834870. The cubic root of 90440967 is about 448.8711905412.

The spelling of 90440967 in words is "ninety million, four hundred forty thousand, nine hundred sixty-seven".