90935649 has 16 divisors (see below), whose sum is σ = 153965440. Its totient is φ = 51963120.

The previous prime is 90935639. The next prime is 90935659. The reversal of 90935649 is 94653909.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90935639) and next prime (90935659).

It is not a de Polignac number, because 90935649 - 2⁴ = 90935633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90935639) 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 15 ways as a sum of consecutive naturals, for example, 240382 + ... + 240759.

It is an arithmetic number, because the mean of its divisors is an integer number (9622840).

Almost surely, 2^90935649 is an apocalyptic number.

It is an amenable number.

90935649 is a deficient number, since it is larger than the sum of its proper divisors (63029791).

90935649 is a wasteful number, since it uses less digits than its factorization.

90935649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481157 (or 481151 counting only the distinct ones).

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

The square root of 90935649 is about 9536.0185087908. The cubic root of 90935649 is about 449.6880949727.

The spelling of 90935649 in words is "ninety million, nine hundred thirty-five thousand, six hundred forty-nine".