787427321 has 8 divisors (see below), whose sum is σ = 793774080. Its totient is φ = 781104688.

The previous prime is 787427299. The next prime is 787427323. The reversal of 787427321 is 123724787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 787427321 - 2²⁶ = 720318457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787427323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62600 + ... + 74118.

It is an arithmetic number, because the mean of its divisors is an integer number (99221760).

Almost surely, 2^787427321 is an apocalyptic number.

It is an amenable number.

787427321 is a deficient number, since it is larger than the sum of its proper divisors (6346759).

787427321 is a wasteful number, since it uses less digits than its factorization.

787427321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12063.

The product of its digits is 131712, while the sum is 41.

The square root of 787427321 is about 28061.1354189384. The cubic root of 787427321 is about 923.4289654786.

The spelling of 787427321 in words is "seven hundred eighty-seven million, four hundred twenty-seven thousand, three hundred twenty-one".