64836772 has 48 divisors (see below), whose sum is σ = 152353152. Its totient is φ = 23316480.

The previous prime is 64836743. The next prime is 64836773. The reversal of 64836772 is 27763846.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64836773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4093 + ... + 12100.

It is an arithmetic number, because the mean of its divisors is an integer number (3174024).

Almost surely, 2^64836772 is an apocalyptic number.

It is an amenable number.

64836772 is an abundant number, since it is smaller than the sum of its proper divisors (87516380).

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

64836772 is a wasteful number, since it uses less digits than its factorization.

64836772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16228 (or 16226 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 64836772 is about 8052.1284142766. The cubic root of 64836772 is about 401.7357321899.

The spelling of 64836772 in words is "sixty-four million, eight hundred thirty-six thousand, seven hundred seventy-two".