91262073 has 32 divisors (see below), whose sum is σ = 147619840. Its totient is φ = 48988800.

The previous prime is 91262071. The next prime is 91262089. The reversal of 91262073 is 37026219.

It is not a de Polignac number, because 91262073 - 2¹ = 91262071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91262073.

It is not an unprimeable number, because it can be changed into a prime (91262071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49773 + ... + 51573.

It is an arithmetic number, because the mean of its divisors is an integer number (4613120).

Almost surely, 2^91262073 is an apocalyptic number.

It is an amenable number.

91262073 is a deficient number, since it is larger than the sum of its proper divisors (56357767).

91262073 is a wasteful number, since it uses less digits than its factorization.

91262073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 91262073 is about 9553.1184960724. The cubic root of 91262073 is about 450.2255215269.

It can be divided in two parts, 912 and 62073, that multiplied together give a square (56610576 = 7524²).

The spelling of 91262073 in words is "ninety-one million, two hundred sixty-two thousand, seventy-three".