46771921 has 9 divisors (see below), whose sum is σ = 54463899. Its totient is φ = 40049184.

The previous prime is 46771919. The next prime is 46771931. The reversal of 46771921 is 12917764.

The square root of 46771921 is 6839.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 43758225 + 3013696 = 6615^2 + 1736^2 .

It is not a de Polignac number, because 46771921 - 2¹ = 46771919 is a prime.

It is a super-2 number, since 2×46771921² = 4375225188060482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (46771931) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47385 + ... + 48361.

Almost surely, 2^46771921 is an apocalyptic number.

46771921 is the 6839-th square number.

46771921 is the 3420-th centered octagonal number.

It is an amenable number.

46771921 is a deficient number, since it is larger than the sum of its proper divisors (7691978).

46771921 is an frugal number, since it uses more digits than its factorization.

46771921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 984 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The cubic root of 46771921 is about 360.2979041331.

The spelling of 46771921 in words is "forty-six million, seven hundred seventy-one thousand, nine hundred twenty-one".