64948830 has 64 divisors (see below), whose sum is σ = 161630208. Its totient is φ = 16692480.

The previous prime is 64948811. The next prime is 64948831. The reversal of 64948830 is 3884946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64948831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102615 + ... + 103245.

It is an arithmetic number, because the mean of its divisors is an integer number (2525472).

Almost surely, 2^64948830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64948830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80815104).

64948830 is an abundant number, since it is smaller than the sum of its proper divisors (96681378).

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

64948830 is a wasteful number, since it uses less digits than its factorization.

64948830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 64948830 is about 8059.0836948130. The cubic root of 64948830 is about 401.9670401927.

The spelling of 64948830 in words is "sixty-four million, nine hundred forty-eight thousand, eight hundred thirty".