90240077 has 8 divisors (see below), whose sum is σ = 93987072. Its totient is φ = 86562000.

The previous prime is 90240061. The next prime is 90240103. The reversal of 90240077 is 77004209.

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

It is a cyclic number.

It is not a de Polignac number, because 90240077 - 2⁴ = 90240061 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 (90240277) 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 7 ways as a sum of consecutive naturals, for example, 14549 + ... + 19802.

It is an arithmetic number, because the mean of its divisors is an integer number (11748384).

Almost surely, 2^90240077 is an apocalyptic number.

It is an amenable number.

90240077 is a deficient number, since it is larger than the sum of its proper divisors (3746995).

90240077 is a wasteful number, since it uses less digits than its factorization.

90240077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34459.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 90240077 is about 9499.4777224856. The cubic root of 90240077 is about 448.5385957579.

The spelling of 90240077 in words is "ninety million, two hundred forty thousand, seventy-seven".