86842020 has 48 divisors (see below), whose sum is σ = 253733760. Its totient is φ = 22150656.

The previous prime is 86842009. The next prime is 86842031. The reversal of 86842020 is 2024868.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86842009) and next prime (86842031).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30085 + ... + 32844.

It is an arithmetic number, because the mean of its divisors is an integer number (5286120).

Almost surely, 2^86842020 is an apocalyptic number.

It is an amenable number.

86842020 is an abundant number, since it is smaller than the sum of its proper divisors (166891740).

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

86842020 is a wasteful number, since it uses less digits than its factorization.

86842020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62964 (or 62962 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 86842020 is about 9318.9065882216. The cubic root of 86842020 is about 442.8363939538.

Adding to 86842020 its reverse (2024868), we get a palindrome (88866888).

The spelling of 86842020 in words is "eighty-six million, eight hundred forty-two thousand, twenty".