90719252 has 24 divisors (see below), whose sum is σ = 174202056. Its totient is φ = 41079168.

The previous prime is 90719219. The next prime is 90719257. The reversal of 90719252 is 25291709.

It can be written as a sum of positive squares in 4 ways, for example, as 9647236 + 81072016 = 3106^2 + 9004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90719257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13703 + ... + 19214.

It is an arithmetic number, because the mean of its divisors is an integer number (7258419).

Almost surely, 2^90719252 is an apocalyptic number.

It is an amenable number.

90719252 is a deficient number, since it is larger than the sum of its proper divisors (83482804).

90719252 is a wasteful number, since it uses less digits than its factorization.

90719252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32987 (or 32985 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 90719252 is about 9524.6654534424. The cubic root of 90719252 is about 449.3311082922.

The spelling of 90719252 in words is "ninety million, seven hundred nineteen thousand, two hundred fifty-two".