91879148 has 6 divisors (see below), whose sum is σ = 160788516. Its totient is φ = 45939572.

The previous prime is 91879147. The next prime is 91879153. The reversal of 91879148 is 84197819.

It is not an unprimeable number, because it can be changed into a prime (91879141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11484890 + ... + 11484897.

It is an arithmetic number, because the mean of its divisors is an integer number (26798086).

Almost surely, 2^91879148 is an apocalyptic number.

It is an amenable number.

91879148 is a deficient number, since it is larger than the sum of its proper divisors (68909368).

91879148 is a wasteful number, since it uses less digits than its factorization.

91879148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22969791 (or 22969789 counting only the distinct ones).

The product of its digits is 145152, while the sum is 47.

The square root of 91879148 is about 9585.3611303904. The cubic root of 91879148 is about 451.2379869578.

The spelling of 91879148 in words is "ninety-one million, eight hundred seventy-nine thousand, one hundred forty-eight".