76728452 has 6 divisors (see below), whose sum is σ = 134274798. Its totient is φ = 38364224.

The previous prime is 76728451. The next prime is 76728499. The reversal of 76728452 is 25482767.

It can be written as a sum of positive squares in only one way, i.e., 72863296 + 3865156 = 8536^2 + 1966^2 .

It is not an unprimeable number, because it can be changed into a prime (76728451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9591053 + ... + 9591060.

It is an arithmetic number, because the mean of its divisors is an integer number (22379133).

Almost surely, 2^76728452 is an apocalyptic number.

It is an amenable number.

76728452 is a deficient number, since it is larger than the sum of its proper divisors (57546346).

76728452 is a wasteful number, since it uses less digits than its factorization.

76728452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19182117 (or 19182115 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 76728452 is about 8759.4778383189. The cubic root of 76728452 is about 424.9313882319.

The spelling of 76728452 in words is "seventy-six million, seven hundred twenty-eight thousand, four hundred fifty-two".