787620 has 24 divisors (see below), whose sum is σ = 2205504. Its totient is φ = 210016.

The previous prime is 787609. The next prime is 787621. The reversal of 787620 is 26787.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (787621) by changing a digit.

787620 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6504 + ... + 6623.

It is an arithmetic number, because the mean of its divisors is an integer number (91896).

2⁷⁸⁷⁶²⁰ is an apocalyptic number.

It is an amenable number.

787620 is an abundant number, since it is smaller than the sum of its proper divisors (1417884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

787620 is a wasteful number, since it uses less digits than its factorization.

787620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13139 (or 13137 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 787620 is about 887.4795772298. The cubic root of 787620 is about 92.3504278613.

The spelling of 787620 in words is "seven hundred eighty-seven thousand, six hundred twenty".