90649395 has 16 divisors (see below), whose sum is σ = 161154720. Its totient is φ = 48346272.

The previous prime is 90649379. The next prime is 90649397. The reversal of 90649395 is 59394609.

It is a happy number.

It is not a de Polignac number, because 90649395 - 2⁴ = 90649379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 90649395.

It is not an unprimeable number, because it can be changed into a prime (90649397) 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, 335604 + ... + 335873.

It is an arithmetic number, because the mean of its divisors is an integer number (10072170).

Almost surely, 2^90649395 is an apocalyptic number.

90649395 is a deficient number, since it is larger than the sum of its proper divisors (70505325).

90649395 is a wasteful number, since it uses less digits than its factorization.

90649395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671491 (or 671485 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 90649395 is about 9520.9975842871. The cubic root of 90649395 is about 449.2157451146.

The spelling of 90649395 in words is "ninety million, six hundred forty-nine thousand, three hundred ninety-five".