76920461 has 4 divisors (see below), whose sum is σ = 81445212. Its totient is φ = 72395712.

The previous prime is 76920443. The next prime is 76920463. The reversal of 76920461 is 16402967.

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 68475625 + 8444836 = 8275^2 + 2906^2 .

It is a cyclic number.

It is not a de Polignac number, because 76920461 - 2⁶ = 76920397 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 (76920463) 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, 2262350 + ... + 2262383.

It is an arithmetic number, because the mean of its divisors is an integer number (20361303).

Almost surely, 2^76920461 is an apocalyptic number.

It is an amenable number.

76920461 is a deficient number, since it is larger than the sum of its proper divisors (4524751).

76920461 is a wasteful number, since it uses less digits than its factorization.

76920461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524750.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 76920461 is about 8770.4310612421. The cubic root of 76920461 is about 425.2855492785.

The spelling of 76920461 in words is "seventy-six million, nine hundred twenty thousand, four hundred sixty-one".