65430690 has 32 divisors (see below), whose sum is σ = 169114176. Its totient is φ = 16105920.

The previous prime is 65430619. The next prime is 65430691. The reversal of 65430690 is 9603456.

It is a happy number.

65430690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65430690² = 8562350387752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65430691) 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, 83496 + ... + 84275.

It is an arithmetic number, because the mean of its divisors is an integer number (5284818).

Almost surely, 2^65430690 is an apocalyptic number.

65430690 is an abundant number, since it is smaller than the sum of its proper divisors (103683486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65430690 is a wasteful number, since it uses less digits than its factorization.

65430690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167794.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 65430690 is about 8088.9239086544. The cubic root of 65430690 is about 402.9586659493.

The spelling of 65430690 in words is "sixty-five million, four hundred thirty thousand, six hundred ninety".