787255231 has 8 divisors (see below), whose sum is σ = 914970240. Its totient is φ = 663352728.

The previous prime is 787255229. The next prime is 787255243. The reversal of 787255231 is 132552787.

It is a happy number.

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 787255231 - 2¹ = 787255229 is a prime.

It is a super-2 number, since 2×787255231² = 1239541597473726722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787255531) 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, 952681 + ... + 953506.

It is an arithmetic number, because the mean of its divisors is an integer number (114371280).

Almost surely, 2^787255231 is an apocalyptic number.

787255231 is a deficient number, since it is larger than the sum of its proper divisors (127715009).

787255231 is a wasteful number, since it uses less digits than its factorization.

787255231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906253.

The product of its digits is 117600, while the sum is 40.

The square root of 787255231 is about 28058.0689107429. The cubic root of 787255231 is about 923.3616896532.

The spelling of 787255231 in words is "seven hundred eighty-seven million, two hundred fifty-five thousand, two hundred thirty-one".