91070680 has 32 divisors (see below), whose sum is σ = 205370640. Its totient is φ = 36346240.

The previous prime is 91070677. The next prime is 91070713. The reversal of 91070680 is 8607019.

It is a congruent number.

It is an unprimeable number.

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, 17322 + ... + 21958.

Almost surely, 2^91070680 is an apocalyptic number.

It is an amenable number.

91070680 is an abundant number, since it is smaller than the sum of its proper divisors (114299960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91070680 is a wasteful number, since it uses less digits than its factorization.

91070680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139 (or 5135 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 91070680 is about 9543.0959337104. The cubic root of 91070680 is about 449.9105665892.

Adding to 91070680 its reverse (8607019), we get a palindrome (99677699).

The spelling of 91070680 in words is "ninety-one million, seventy thousand, six hundred eighty".