91397468 has 6 divisors (see below), whose sum is σ = 159945576. Its totient is φ = 45698732.

The previous prime is 91397461. The next prime is 91397477. The reversal of 91397468 is 86479319.

It is a super-2 number, since 2×91397468² = 16706994313622048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91397461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11424680 + ... + 11424687.

It is an arithmetic number, because the mean of its divisors is an integer number (26657596).

Almost surely, 2^91397468 is an apocalyptic number.

It is an amenable number.

91397468 is a deficient number, since it is larger than the sum of its proper divisors (68548108).

91397468 is a wasteful number, since it uses less digits than its factorization.

91397468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22849371 (or 22849369 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 91397468 is about 9560.2022991148. The cubic root of 91397468 is about 450.4480607180.

The spelling of 91397468 in words is "ninety-one million, three hundred ninety-seven thousand, four hundred sixty-eight".