88890913 has 4 divisors (see below), whose sum is σ = 89138880. Its totient is φ = 88642948.

The previous prime is 88890899. The next prime is 88890937. The reversal of 88890913 is 31909888.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88890913 - 2⁵ = 88890881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88890973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123445 + ... + 124162.

It is an arithmetic number, because the mean of its divisors is an integer number (22284720).

Almost surely, 2^88890913 is an apocalyptic number.

It is an amenable number.

88890913 is a deficient number, since it is larger than the sum of its proper divisors (247967).

88890913 is a wasteful number, since it uses less digits than its factorization.

88890913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247966.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 88890913 is about 9428.1977599115. The cubic root of 88890913 is about 446.2920208791.

The spelling of 88890913 in words is "eighty-eight million, eight hundred ninety thousand, nine hundred thirteen".