91419948 has 144 divisors (see below), whose sum is σ = 263037600. Its totient is φ = 27417600.

The previous prime is 91419943. The next prime is 91420027. The reversal of 91419948 is 84991419.

It is not an unprimeable number, because it can be changed into a prime (91419943) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 905098 + ... + 905198.

It is an arithmetic number, because the mean of its divisors is an integer number (1826650).

Almost surely, 2^91419948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91419948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131518800).

91419948 is an abundant number, since it is smaller than the sum of its proper divisors (171617652).

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

91419948 is a wasteful number, since it uses less digits than its factorization.

91419948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 152 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 91419948 is about 9561.3779341683. The cubic root of 91419948 is about 450.4849882265.

The spelling of 91419948 in words is "ninety-one million, four hundred nineteen thousand, nine hundred forty-eight".