86734420 has 24 divisors (see below), whose sum is σ = 182592648. Its totient is φ = 34608000.

The previous prime is 86734409. The next prime is 86734421. The reversal of 86734420 is 2443768.

It can be written as a sum of positive squares in 4 ways, for example, as 5626384 + 81108036 = 2372^2 + 9006^2 .

It is a super-2 number, since 2×86734420² = 15045719225472800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86734421) 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, 3270 + ... + 13570.

It is an arithmetic number, because the mean of its divisors is an integer number (7608027).

Almost surely, 2^86734420 is an apocalyptic number.

It is an amenable number.

86734420 is an abundant number, since it is smaller than the sum of its proper divisors (95858228).

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

86734420 is a wasteful number, since it uses less digits than its factorization.

86734420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10731 (or 10729 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 86734420 is about 9313.1315893205. The cubic root of 86734420 is about 442.6534222804.

The spelling of 86734420 in words is "eighty-six million, seven hundred thirty-four thousand, four hundred twenty".