90653451 has 16 divisors (see below), whose sum is σ = 138860544. Its totient is φ = 51531264.

The previous prime is 90653443. The next prime is 90653461. The reversal of 90653451 is 15435609.

It is a happy number.

It is not a de Polignac number, because 90653451 - 2³ = 90653443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90653461) 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, 7131 + ... + 15236.

It is an arithmetic number, because the mean of its divisors is an integer number (8678784).

Almost surely, 2^90653451 is an apocalyptic number.

90653451 is a deficient number, since it is larger than the sum of its proper divisors (48207093).

90653451 is a wasteful number, since it uses less digits than its factorization.

90653451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22570.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 90653451 is about 9521.2105847944. The cubic root of 90653451 is about 449.2224448905. Note that the first 3 decimals are identical.

The spelling of 90653451 in words is "ninety million, six hundred fifty-three thousand, four hundred fifty-one".