7864772 has 12 divisors (see below), whose sum is σ = 13783056. Its totient is φ = 3926760.

The previous prime is 7864721. The next prime is 7864777. The reversal of 7864772 is 2774687.

It is a super-2 number, since 2×7864772² = 123709277223968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7864777) 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, 4403 + ... + 5925.

It is an arithmetic number, because the mean of its divisors is an integer number (1148588).

Almost surely, 2^7864772 is an apocalyptic number.

It is an amenable number.

7864772 is a deficient number, since it is larger than the sum of its proper divisors (5918284).

7864772 is a wasteful number, since it uses less digits than its factorization.

7864772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 2816 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The square root of 7864772 is about 2804.4200826552. The cubic root of 7864772 is about 198.8666901743.

The spelling of 7864772 in words is "seven million, eight hundred sixty-four thousand, seven hundred seventy-two".