76293421 has 4 divisors (see below), whose sum is σ = 76315932. Its totient is φ = 76270912.

The previous prime is 76293409. The next prime is 76293487. The reversal of 76293421 is 12439267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12439267 = 157 ⋅79231.

It can be written as a sum of positive squares in 2 ways, for example, as 14356521 + 61936900 = 3789^2 + 7870^2 .

It is a cyclic number.

It is not a de Polignac number, because 76293421 - 2⁵ = 76293389 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 (76293521) 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, 5020 + ... + 13333.

It is an arithmetic number, because the mean of its divisors is an integer number (19078983).

Almost surely, 2^76293421 is an apocalyptic number.

It is an amenable number.

76293421 is a deficient number, since it is larger than the sum of its proper divisors (22511).

76293421 is a wasteful number, since it uses less digits than its factorization.

76293421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22510.

The product of its digits is 18144, while the sum is 34.

The square root of 76293421 is about 8734.6105236582. The cubic root of 76293421 is about 424.1267810174.

The spelling of 76293421 in words is "seventy-six million, two hundred ninety-three thousand, four hundred twenty-one".