980191775 has 12 divisors (see below), whose sum is σ = 1227241392. Its totient is φ = 776538240.

The previous prime is 980191757. The next prime is 980191777. The reversal of 980191775 is 577191089.

It is not a de Polignac number, because 980191775 - 2⁶ = 980191711 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 (980191777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187754 + ... + 192903.

It is an arithmetic number, because the mean of its divisors is an integer number (102270116).

Almost surely, 2^980191775 is an apocalyptic number.

980191775 is a deficient number, since it is larger than the sum of its proper divisors (247049617).

980191775 is a wasteful number, since it uses less digits than its factorization.

980191775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380770 (or 380765 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 47.

The square root of 980191775 is about 31308.0145489937. The cubic root of 980191775 is about 993.3531759495.

The spelling of 980191775 in words is "nine hundred eighty million, one hundred ninety-one thousand, seven hundred seventy-five".