116820487 has 8 divisors (see below), whose sum is σ = 133575200. Its totient is φ = 100082304.

The previous prime is 116820479. The next prime is 116820491. The reversal of 116820487 is 784028611.

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

It is not a de Polignac number, because 116820487 - 2³ = 116820479 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 (116820287) 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, 22339 + ... + 27067.

It is an arithmetic number, because the mean of its divisors is an integer number (16696900).

Almost surely, 2^116820487 is an apocalyptic number.

116820487 is a deficient number, since it is larger than the sum of its proper divisors (16754713).

116820487 is an equidigital number, since it uses as much as digits as its factorization.

116820487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 116820487 is about 10808.3526496872. The cubic root of 116820487 is about 488.8470560759.

The spelling of 116820487 in words is "one hundred sixteen million, eight hundred twenty thousand, four hundred eighty-seven".