64770364 has 12 divisors (see below), whose sum is σ = 113849064. Its totient is φ = 32242064.

The previous prime is 64770361. The next prime is 64770367. The reversal of 64770364 is 46307746.

It is an interprime number because it is at equal distance from previous prime (64770361) and next prime (64770367).

It is a super-4 number, since 4×64770364⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64770361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34759 + ... + 36574.

It is an arithmetic number, because the mean of its divisors is an integer number (9487422).

Almost surely, 2^64770364 is an apocalyptic number.

It is an amenable number.

64770364 is a deficient number, since it is larger than the sum of its proper divisors (49078700).

64770364 is a wasteful number, since it uses less digits than its factorization.

64770364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71564 (or 71562 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 64770364 is about 8048.0037276333. The cubic root of 64770364 is about 401.5985282587.

The spelling of 64770364 in words is "sixty-four million, seven hundred seventy thousand, three hundred sixty-four".