76448401 has 4 divisors (see below), whose sum is σ = 78514612. Its totient is φ = 74382192.

The previous prime is 76448369. The next prime is 76448413. The reversal of 76448401 is 10484467.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54405376 + 22043025 = 7376^2 + 4695^2 .

It is a cyclic number.

It is not a de Polignac number, because 76448401 - 2⁵ = 76448369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76448441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033050 + ... + 1033123.

It is an arithmetic number, because the mean of its divisors is an integer number (19628653).

Almost surely, 2^76448401 is an apocalyptic number.

It is an amenable number.

76448401 is a deficient number, since it is larger than the sum of its proper divisors (2066211).

76448401 is a wasteful number, since it uses less digits than its factorization.

76448401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066210.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 76448401 is about 8743.4776262080. The cubic root of 76448401 is about 424.4137726075.

The spelling of 76448401 in words is "seventy-six million, four hundred forty-eight thousand, four hundred one".