709975854 has 80 divisors (see below), whose sum is σ = 1880920800. Its totient is φ = 195846336.

The previous prime is 709975837. The next prime is 709975859. The reversal of 709975854 is 458579907.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 709975854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709975859) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22092 + ... + 43680.

It is an arithmetic number, because the mean of its divisors is an integer number (23511510).

Almost surely, 2^709975854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709975854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940460400).

709975854 is an abundant number, since it is smaller than the sum of its proper divisors (1170944946).

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

709975854 is a wasteful number, since it uses less digits than its factorization.

709975854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21639 (or 21630 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The square root of 709975854 is about 26645.3720934799. The cubic root of 709975854 is about 892.1020272137.

The spelling of 709975854 in words is "seven hundred nine million, nine hundred seventy-five thousand, eight hundred fifty-four".