91777045 has 8 divisors (see below), whose sum is σ = 110862720. Its totient is φ = 72934800.

The previous prime is 91777039. The next prime is 91777051. The reversal of 91777045 is 54077719.

It is an interprime number because it is at equal distance from previous prime (91777039) and next prime (91777051).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91777045 - 2⁷ = 91776917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91776989 and 91777007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60025 + ... + 61534.

It is an arithmetic number, because the mean of its divisors is an integer number (13857840).

Almost surely, 2^91777045 is an apocalyptic number.

It is an amenable number.

91777045 is a deficient number, since it is larger than the sum of its proper divisors (19085675).

91777045 is a wasteful number, since it uses less digits than its factorization.

91777045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121715.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 91777045 is about 9580.0336638239. The cubic root of 91777045 is about 451.0707751720.

The spelling of 91777045 in words is "ninety-one million, seven hundred seventy-seven thousand, forty-five".