78022948 has 6 divisors (see below), whose sum is σ = 136540166. Its totient is φ = 39011472.

The previous prime is 78022921. The next prime is 78022981. The reversal of 78022948 is 84922087.

It can be written as a sum of positive squares in only one way, i.e., 40347904 + 37675044 = 6352^2 + 6138^2 .

It is a super-2 number, since 2×78022948² = 12175160829221408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78022948.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9752865 + ... + 9752872.

Almost surely, 2^78022948 is an apocalyptic number.

It is an amenable number.

78022948 is a deficient number, since it is larger than the sum of its proper divisors (58517218).

78022948 is a wasteful number, since it uses less digits than its factorization.

78022948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19505741 (or 19505739 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 78022948 is about 8833.0599454549. The cubic root of 78022948 is about 427.3077653311.

The spelling of 78022948 in words is "seventy-eight million, twenty-two thousand, nine hundred forty-eight".