91069948 has 12 divisors (see below), whose sum is σ = 160182792. Its totient is φ = 45303440.

The previous prime is 91069933. The next prime is 91069961. The reversal of 91069948 is 84996019.

It is a junction number, because it is equal to n+sod(n) for n = 91069898 and 91069907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56998 + ... + 58573.

It is an arithmetic number, because the mean of its divisors is an integer number (13348566).

Almost surely, 2^91069948 is an apocalyptic number.

It is an amenable number.

91069948 is a deficient number, since it is larger than the sum of its proper divisors (69112844).

91069948 is a wasteful number, since it uses less digits than its factorization.

91069948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115772 (or 115770 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 91069948 is about 9543.0575812996. The cubic root of 91069948 is about 449.9093611687.

The spelling of 91069948 in words is "ninety-one million, sixty-nine thousand, nine hundred forty-eight".