787923 has 6 divisors (see below), whose sum is σ = 1138124. Its totient is φ = 525276.

The previous prime is 787907. The next prime is 787939. The reversal of 787923 is 329787.

It is an interprime number because it is at equal distance from previous prime (787907) and next prime (787939).

It is not a de Polignac number, because 787923 - 2⁴ = 787907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43765 + ... + 43782.

2⁷⁸⁷⁹²³ is an apocalyptic number.

787923 is a deficient number, since it is larger than the sum of its proper divisors (350201).

787923 is a wasteful number, since it uses less digits than its factorization.

787923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87553 (or 87550 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 787923 is about 887.6502689686. The cubic root of 787923 is about 92.3622688473.

It can be divided in two parts, 78 and 7923, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 787923 in words is "seven hundred eighty-seven thousand, nine hundred twenty-three".