86729955 has 24 divisors (see below), whose sum is σ = 150267888. Its totient is φ = 42696576.

The previous prime is 86729953. The next prime is 86729977. The reversal of 86729955 is 55992768.

It is a happy number.

It is not a de Polignac number, because 86729955 - 2¹ = 86729953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86729898 and 86729907.

It is not an unprimeable number, because it can be changed into a prime (86729953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14572 + ... + 19641.

It is an arithmetic number, because the mean of its divisors is an integer number (6261162).

Almost surely, 2^86729955 is an apocalyptic number.

86729955 is a deficient number, since it is larger than the sum of its proper divisors (63537933).

86729955 is a wasteful number, since it uses less digits than its factorization.

86729955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34247 (or 34234 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 86729955 is about 9312.8918709496. The cubic root of 86729955 is about 442.6458263669.

The spelling of 86729955 in words is "eighty-six million, seven hundred twenty-nine thousand, nine hundred fifty-five".