91961082 has 20 divisors (see below), whose sum is σ = 206061306. Its totient is φ = 30653640.

The previous prime is 91961063. The next prime is 91961087. The reversal of 91961082 is 28016919.

It can be written as a sum of positive squares in only one way, i.e., 86099841 + 5861241 = 9279^2 + 2421^2 .

It is a super-3 number, since 3×91961082³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (91961087) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 283669 + ... + 283992.

Almost surely, 2^91961082 is an apocalyptic number.

91961082 is an abundant number, since it is smaller than the sum of its proper divisors (114100224).

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

91961082 is a wasteful number, since it uses less digits than its factorization.

91961082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567675 (or 567666 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 91961082 is about 9589.6340910381. The cubic root of 91961082 is about 451.3720788583.

It can be divided in two parts, 919 and 61082, that added together give a square (62001 = 249²).

The spelling of 91961082 in words is "ninety-one million, nine hundred sixty-one thousand, eighty-two".