86021950 has 36 divisors (see below), whose sum is σ = 186128712. Its totient is φ = 29492400.

The previous prime is 86021939. The next prime is 86021951. The reversal of 86021950 is 5912068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86021951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15106 + ... + 20005.

It is an arithmetic number, because the mean of its divisors is an integer number (5170242).

Almost surely, 2^86021950 is an apocalyptic number.

86021950 is an abundant number, since it is smaller than the sum of its proper divisors (100106762).

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

86021950 is a wasteful number, since it uses less digits than its factorization.

86021950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35137 (or 35125 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 86021950 is about 9274.8018846766. The cubic root of 86021950 is about 441.4380463090.

The spelling of 86021950 in words is "eighty-six million, twenty-one thousand, nine hundred fifty".