78296756 has 6 divisors (see below), whose sum is σ = 137019330. Its totient is φ = 39148376.

The previous prime is 78296719. The next prime is 78296759. The reversal of 78296756 is 65769287.

It can be written as a sum of positive squares in only one way, i.e., 68624656 + 9672100 = 8284^2 + 3110^2 .

It is a super-2 number, since 2×78296756² = 12260764000247072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78296759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9787091 + ... + 9787098.

It is an arithmetic number, because the mean of its divisors is an integer number (22836555).

Almost surely, 2^78296756 is an apocalyptic number.

It is an amenable number.

78296756 is a deficient number, since it is larger than the sum of its proper divisors (58722574).

78296756 is a wasteful number, since it uses less digits than its factorization.

78296756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19574193 (or 19574191 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The square root of 78296756 is about 8848.5454171858. The cubic root of 78296756 is about 427.8070359079.

The spelling of 78296756 in words is "seventy-eight million, two hundred ninety-six thousand, seven hundred fifty-six".