76748849 has 2 divisors, whose sum is σ = 76748850. Its totient is φ = 76748848.

The previous prime is 76748831. The next prime is 76748869. The reversal of 76748849 is 94884767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64915249 + 11833600 = 8057^2 + 3440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76748849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76748849.

It is not a weakly prime, because it can be changed into another prime (76748869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38374424 + 38374425.

It is an arithmetic number, because the mean of its divisors is an integer number (38374425).

Almost surely, 2^76748849 is an apocalyptic number.

It is an amenable number.

76748849 is a deficient number, since it is larger than the sum of its proper divisors (1).

76748849 is an equidigital number, since it uses as much as digits as its factorization.

76748849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 53.

The square root of 76748849 is about 8760.6420426816. The cubic root of 76748849 is about 424.9690385750.

The spelling of 76748849 in words is "seventy-six million, seven hundred forty-eight thousand, eight hundred forty-nine".