690948846 has 64 divisors (see below), whose sum is σ = 1758220800. Its totient is φ = 197028288.

The previous prime is 690948821. The next prime is 690948877. The reversal of 690948846 is 648849096.

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

It is a junction number, because it is equal to n+sod(n) for n = 690948792 and 690948801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232506 + ... + 235458.

It is an arithmetic number, because the mean of its divisors is an integer number (27472200).

Almost surely, 2^690948846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690948846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879110400).

690948846 is an abundant number, since it is smaller than the sum of its proper divisors (1067271954).

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

690948846 is a wasteful number, since it uses less digits than its factorization.

690948846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590 (or 3584 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 690948846 is about 26285.9058432461. The cubic root of 690948846 is about 884.0604565097.

It can be divided in two parts, 6909 and 48846, that added together give a palindrome (55755).

The spelling of 690948846 in words is "six hundred ninety million, nine hundred forty-eight thousand, eight hundred forty-six".