76729453 has 8 divisors (see below), whose sum is σ = 79383672. Its totient is φ = 74105856.

The previous prime is 76729423. The next prime is 76729469. The reversal of 76729453 is 35492767.

It can be written as a sum of positive squares in 4 ways, for example, as 33143049 + 43586404 = 5757^2 + 6602^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76729453 - 2⁵ = 76729421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76729423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500 + ... + 12637.

It is an arithmetic number, because the mean of its divisors is an integer number (9922959).

Almost surely, 2^76729453 is an apocalyptic number.

It is an amenable number.

76729453 is a deficient number, since it is larger than the sum of its proper divisors (2654219).

76729453 is a wasteful number, since it uses less digits than its factorization.

76729453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15311.

The product of its digits is 317520, while the sum is 43.

The square root of 76729453 is about 8759.5349762416. The cubic root of 76729453 is about 424.9332361100.

The spelling of 76729453 in words is "seventy-six million, seven hundred twenty-nine thousand, four hundred fifty-three".