65432090 has 16 divisors (see below), whose sum is σ = 119392488. Its totient is φ = 25814016.

The previous prime is 65432071. The next prime is 65432117. The reversal of 65432090 is 9023456.

It can be written as a sum of positive squares in 4 ways, for example, as 37246609 + 28185481 = 6103^2 + 5309^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44087 + ... + 45546.

Almost surely, 2^65432090 is an apocalyptic number.

65432090 is a deficient number, since it is larger than the sum of its proper divisors (53960398).

65432090 is a wasteful number, since it uses less digits than its factorization.

65432090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89713.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 65432090 is about 8089.0104462783. The cubic root of 65432090 is about 402.9615399223.

The spelling of 65432090 in words is "sixty-five million, four hundred thirty-two thousand, ninety".