46638961 has 4 divisors (see below), whose sum is σ = 47723632. Its totient is φ = 45554292.

The previous prime is 46638947. The next prime is 46638971. The reversal of 46638961 is 16983664.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 46638961 - 2⁵ = 46638929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1084627 = 46638961 / (4 + 6 + 6 + 3 + 8 + 9 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46638971) 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, 542271 + ... + 542356.

It is an arithmetic number, because the mean of its divisors is an integer number (11930908).

Almost surely, 2^46638961 is an apocalyptic number.

It is an amenable number.

46638961 is a deficient number, since it is larger than the sum of its proper divisors (1084671).

46638961 is a wasteful number, since it uses less digits than its factorization.

46638961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084670.

The product of its digits is 186624, while the sum is 43.

The square root of 46638961 is about 6829.2723624117. The cubic root of 46638961 is about 359.9561700755.

The spelling of 46638961 in words is "forty-six million, six hundred thirty-eight thousand, nine hundred sixty-one".