88411991 has 8 divisors (see below), whose sum is σ = 89861184. Its totient is φ = 86974720.

The previous prime is 88411987. The next prime is 88412017. The reversal of 88411991 is 19911488.

88411991 = T₁₁₉₄ + T₁₁₉₅ + ... + T₁₃₀₆.

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 88411991 - 2² = 88411987 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 (88411901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12626 + ... + 18336.

It is an arithmetic number, because the mean of its divisors is an integer number (11232648).

Almost surely, 2^88411991 is an apocalyptic number.

88411991 is a deficient number, since it is larger than the sum of its proper divisors (1449193).

88411991 is a wasteful number, since it uses less digits than its factorization.

88411991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961.

The product of its digits is 20736, while the sum is 41.

The square root of 88411991 is about 9402.7650720413. The cubic root of 88411991 is about 445.4890738712.

The spelling of 88411991 in words is "eighty-eight million, four hundred eleven thousand, nine hundred ninety-one".