91053077 has 4 divisors (see below), whose sum is σ = 91717836. Its totient is φ = 90388320.

The previous prime is 91053049. The next prime is 91053089. The reversal of 91053077 is 77035019.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76983076 + 14070001 = 8774^2 + 3751^2 .

It is a cyclic number.

It is not a de Polignac number, because 91053077 - 2⁶ = 91053013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91053007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332174 + ... + 332447.

It is an arithmetic number, because the mean of its divisors is an integer number (22929459).

Almost surely, 2^91053077 is an apocalyptic number.

It is an amenable number.

91053077 is a deficient number, since it is larger than the sum of its proper divisors (664759).

91053077 is a wasteful number, since it uses less digits than its factorization.

91053077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664758.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 91053077 is about 9542.1735993431. The cubic root of 91053077 is about 449.8815770688.

The spelling of 91053077 in words is "ninety-one million, fifty-three thousand, seventy-seven".