90641495 has 16 divisors (see below), whose sum is σ = 130851840. Its totient is φ = 58882464.

The previous prime is 90641491. The next prime is 90641503. The reversal of 90641495 is 59414609.

It is a cyclic number.

It is not a de Polignac number, because 90641495 - 2² = 90641491 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90641491) 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, 67487 + ... + 68816.

It is an arithmetic number, because the mean of its divisors is an integer number (8178240).

Almost surely, 2^90641495 is an apocalyptic number.

90641495 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

90641495 is a deficient number, since it is larger than the sum of its proper divisors (40210345).

90641495 is a wasteful number, since it uses less digits than its factorization.

90641495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136334.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 90641495 is about 9520.5827027551. The cubic root of 90641495 is about 449.2026951747.

The spelling of 90641495 in words is "ninety million, six hundred forty-one thousand, four hundred ninety-five".