3923701664 has 12 divisors (see below), whose sum is σ = 7724787714. Its totient is φ = 1961850816.

The previous prime is 3923701633. The next prime is 3923701669. The reversal of 3923701664 is 4661073293.

It can be written as a sum of positive squares in only one way, i.e., 3713683600 + 210018064 = 60940^2 + 14492^2 .

It is not an unprimeable number, because it can be changed into a prime (3923701669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61307807 + ... + 61307870.

Almost surely, 2^3923701664 is an apocalyptic number.

It is an amenable number.

3923701664 is a deficient number, since it is larger than the sum of its proper divisors (3801086050).

3923701664 is a wasteful number, since it uses less digits than its factorization.

3923701664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122615687 (or 122615679 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 3923701664 is about 62639.4577243450. The cubic root of 3923701664 is about 1577.2431849615.

The spelling of 3923701664 in words is "three billion, nine hundred twenty-three million, seven hundred one thousand, six hundred sixty-four".