90344977 has 8 divisors (see below), whose sum is σ = 91428480. Its totient is φ = 89266320.

The previous prime is 90344963. The next prime is 90344983. The reversal of 90344977 is 77944309.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90344977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90344377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47352 + ... + 49222.

It is an arithmetic number, because the mean of its divisors is an integer number (11428560).

Almost surely, 2^90344977 is an apocalyptic number.

It is an amenable number.

90344977 is a deficient number, since it is larger than the sum of its proper divisors (1083503).

90344977 is a wasteful number, since it uses less digits than its factorization.

90344977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 90344977 is about 9504.9974750128. The cubic root of 90344977 is about 448.7123303860.

The spelling of 90344977 in words is "ninety million, three hundred forty-four thousand, nine hundred seventy-seven".