901981086 has 32 divisors (see below), whose sum is σ = 1830850560. Its totient is φ = 296199744.

The previous prime is 901981081. The next prime is 901981103. The reversal of 901981086 is 680189109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901981081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188370 + ... + 193098.

It is an arithmetic number, because the mean of its divisors is an integer number (57214080).

Almost surely, 2^901981086 is an apocalyptic number.

901981086 is an abundant number, since it is smaller than the sum of its proper divisors (928869474).

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

901981086 is a wasteful number, since it uses less digits than its factorization.

901981086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 901981086 is about 30032.9999500549. Note that the first 4 decimals coincide. The cubic root of 901981086 is about 966.1972793419.

The spelling of 901981086 in words is "nine hundred one million, nine hundred eighty-one thousand, eighty-six".