46643945 has 4 divisors (see below), whose sum is σ = 55972740. Its totient is φ = 37315152.

The previous prime is 46643941. The next prime is 46643951. The reversal of 46643945 is 54934664.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 34140649 = 3536^2 + 5843^2 .

It is a cyclic number.

It is not a de Polignac number, because 46643945 - 2² = 46643941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (46643941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4664390 + ... + 4664399.

It is an arithmetic number, because the mean of its divisors is an integer number (13993185).

Almost surely, 2^46643945 is an apocalyptic number.

It is an amenable number.

46643945 is a deficient number, since it is larger than the sum of its proper divisors (9328795).

46643945 is an equidigital number, since it uses as much as digits as its factorization.

46643945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9328794.

The product of its digits is 311040, while the sum is 41.

The square root of 46643945 is about 6829.6372524461. The cubic root of 46643945 is about 359.9689916708.

The spelling of 46643945 in words is "forty-six million, six hundred forty-three thousand, nine hundred forty-five".