91280348 has 6 divisors (see below), whose sum is σ = 159740616. Its totient is φ = 45640172.

The previous prime is 91280347. The next prime is 91280359. The reversal of 91280348 is 84308219.

It is a happy number.

It is a super-2 number, since 2×91280348² = 16664203862002208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91280347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11410040 + ... + 11410047.

It is an arithmetic number, because the mean of its divisors is an integer number (26623436).

Almost surely, 2^91280348 is an apocalyptic number.

It is an amenable number.

91280348 is a deficient number, since it is larger than the sum of its proper divisors (68460268).

91280348 is a wasteful number, since it uses less digits than its factorization.

91280348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22820091 (or 22820089 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 91280348 is about 9554.0749421386. The cubic root of 91280348 is about 450.2555716963.

The spelling of 91280348 in words is "ninety-one million, two hundred eighty thousand, three hundred forty-eight".