961099386 has 128 divisors (see below), whose sum is σ = 2294562816. Its totient is φ = 265559040.

The previous prime is 961099361. The next prime is 961099397. The reversal of 961099386 is 683990169.

It is a super-3 number, since 3×961099386³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4233805 + ... + 4234031.

It is an arithmetic number, because the mean of its divisors is an integer number (17926272).

Almost surely, 2^961099386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961099386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147281408).

961099386 is an abundant number, since it is smaller than the sum of its proper divisors (1333463430).

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

961099386 is a wasteful number, since it uses less digits than its factorization.

961099386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 961099386 is about 31001.6029585568. The cubic root of 961099386 is about 986.8612581614.

The spelling of 961099386 in words is "nine hundred sixty-one million, ninety-nine thousand, three hundred eighty-six".