90610709 has 8 divisors (see below), whose sum is σ = 104866560. Its totient is φ = 76682736.

The previous prime is 90610699. The next prime is 90610717. The reversal of 90610709 is 90701609.

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 90610709 - 2¹² = 90606613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90610759) 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, 81374 + ... + 82479.

It is an arithmetic number, because the mean of its divisors is an integer number (13108320).

Almost surely, 2^90610709 is an apocalyptic number.

It is an amenable number.

90610709 is a deficient number, since it is larger than the sum of its proper divisors (14255851).

90610709 is a wasteful number, since it uses less digits than its factorization.

90610709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163939.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 90610709 is about 9518.9657526435. The cubic root of 90610709 is about 449.1518328180.

It can be divided in two parts, 90610 and 709, that added together give a palindrome (91319).

The spelling of 90610709 in words is "ninety million, six hundred ten thousand, seven hundred nine".