46890981 has 24 divisors (see below), whose sum is σ = 74378304. Its totient is φ = 29419200.

The previous prime is 46890979. The next prime is 46890989. The reversal of 46890981 is 18909864.

It is not a de Polignac number, because 46890981 - 2¹ = 46890979 is a prime.

It is a super-2 number, since 2×46890981² = 4397528198284722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46890989) 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, 1545 + ... + 9806.

It is an arithmetic number, because the mean of its divisors is an integer number (3099096).

Almost surely, 2^46890981 is an apocalyptic number.

It is an amenable number.

46890981 is a deficient number, since it is larger than the sum of its proper divisors (27487323).

46890981 is a wasteful number, since it uses less digits than its factorization.

46890981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11383 (or 11371 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 46890981 is about 6847.6989565839. The cubic root of 46890981 is about 360.6033631930.

The spelling of 46890981 in words is "forty-six million, eight hundred ninety thousand, nine hundred eighty-one".