787258 has 4 divisors (see below), whose sum is σ = 1180890. Its totient is φ = 393628.

The previous prime is 787243. The next prime is 787261. The reversal of 787258 is 852787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 852787 = 13 ⋅65599.

It can be written as a sum of positive squares in only one way, i.e., 779689 + 7569 = 883^2 + 87^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196813 + ... + 196816.

2⁷⁸⁷²⁵⁸ is an apocalyptic number.

787258 is a deficient number, since it is larger than the sum of its proper divisors (393632).

787258 is a wasteful number, since it uses less digits than its factorization.

787258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393631.

The product of its digits is 31360, while the sum is 37.

The square root of 787258 is about 887.2756054350. The cubic root of 787258 is about 92.3362772227.

The spelling of 787258 in words is "seven hundred eighty-seven thousand, two hundred fifty-eight".