64616730 has 16 divisors (see below), whose sum is σ = 155080224. Its totient is φ = 17231120.

The previous prime is 64616653. The next prime is 64616737. The reversal of 64616730 is 3761646.

It is a junction number, because it is equal to n+sod(n) for n = 64616691 and 64616700.

It is not an unprimeable number, because it can be changed into a prime (64616737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076916 + ... + 1076975.

It is an arithmetic number, because the mean of its divisors is an integer number (9692514).

Almost surely, 2^64616730 is an apocalyptic number.

64616730 is an abundant number, since it is smaller than the sum of its proper divisors (90463494).

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

64616730 is a wasteful number, since it uses less digits than its factorization.

64616730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153901.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 64616730 is about 8038.4532094178. The cubic root of 64616730 is about 401.2807489950.

The spelling of 64616730 in words is "sixty-four million, six hundred sixteen thousand, seven hundred thirty".