76445401 has 4 divisors (see below), whose sum is σ = 77159952. Its totient is φ = 75730852.

The previous prime is 76445389. The next prime is 76445423. The reversal of 76445401 is 10454467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10454467 = 41 ⋅254987.

It is a cyclic number.

It is not a de Polignac number, because 76445401 - 2⁷ = 76445273 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76445431) 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, 357115 + ... + 357328.

It is an arithmetic number, because the mean of its divisors is an integer number (19289988).

Almost surely, 2^76445401 is an apocalyptic number.

It is an amenable number.

76445401 is a deficient number, since it is larger than the sum of its proper divisors (714551).

76445401 is a wasteful number, since it uses less digits than its factorization.

76445401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714550.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 76445401 is about 8743.3060680729. The cubic root of 76445401 is about 424.4082208979.

Adding to 76445401 its reverse (10454467), we get a palindrome (86899868).

The spelling of 76445401 in words is "seventy-six million, four hundred forty-five thousand, four hundred one".