86899725 has 36 divisors (see below), whose sum is σ = 169801632. Its totient is φ = 42132000.

The previous prime is 86899723. The next prime is 86899739. The reversal of 86899725 is 52799868.

It is a happy number.

It is not a de Polignac number, because 86899725 - 2¹ = 86899723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86899723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15081 + ... + 20030.

It is an arithmetic number, because the mean of its divisors is an integer number (4716712).

Almost surely, 2^86899725 is an apocalyptic number.

It is an amenable number.

86899725 is a deficient number, since it is larger than the sum of its proper divisors (82901907).

86899725 is a wasteful number, since it uses less digits than its factorization.

86899725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35138 (or 35130 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 86899725 is about 9322.0021990986. The cubic root of 86899725 is about 442.9344579101.

It can be divided in two parts, 86 and 899725, that added together give a triangular number (899811 = T₁₃₄₁).

The spelling of 86899725 in words is "eighty-six million, eight hundred ninety-nine thousand, seven hundred twenty-five".