76282021 has 4 divisors (see below), whose sum is σ = 76351072. Its totient is φ = 76212972.

The previous prime is 76282013. The next prime is 76282033. The reversal of 76282021 is 12028267.

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.

It is a cyclic number.

It is not a de Polignac number, because 76282021 - 2³ = 76282013 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 (76282121) 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, 32841 + ... + 35086.

It is an arithmetic number, because the mean of its divisors is an integer number (19087768).

Almost surely, 2^76282021 is an apocalyptic number.

It is an amenable number.

76282021 is a deficient number, since it is larger than the sum of its proper divisors (69051).

76282021 is a wasteful number, since it uses less digits than its factorization.

76282021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69050.

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

The square root of 76282021 is about 8733.9579229580. The cubic root of 76282021 is about 424.1056551847.

The spelling of 76282021 in words is "seventy-six million, two hundred eighty-two thousand, twenty-one".