76420801 has 4 divisors (see below), whose sum is σ = 76568004. Its totient is φ = 76273600.

The previous prime is 76420787. The next prime is 76420807. The reversal of 76420801 is 10802467.

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 36288576 + 40132225 = 6024^2 + 6335^2 .

It is a cyclic number.

It is not a de Polignac number, because 76420801 - 2⁵ = 76420769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76420801.

It is not an unprimeable number, because it can be changed into a prime (76420807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72820 + ... + 73861.

It is an arithmetic number, because the mean of its divisors is an integer number (19142001).

Almost surely, 2^76420801 is an apocalyptic number.

It is an amenable number.

76420801 is a deficient number, since it is larger than the sum of its proper divisors (147203).

76420801 is a wasteful number, since it uses less digits than its factorization.

76420801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147202.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 76420801 is about 8741.8991643693. The cubic root of 76420801 is about 424.3626913993.

The spelling of 76420801 in words is "seventy-six million, four hundred twenty thousand, eight hundred one".