46446991 has 4 divisors (see below), whose sum is σ = 46581192. Its totient is φ = 46312792.

The previous prime is 46446949. The next prime is 46447031. The reversal of 46446991 is 19964464.

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

It is a cyclic number.

It is not a de Polignac number, because 46446991 - 2⁷ = 46446863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46446691) 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, 66580 + ... + 67273.

It is an arithmetic number, because the mean of its divisors is an integer number (11645298).

Almost surely, 2^46446991 is an apocalyptic number.

46446991 is a deficient number, since it is larger than the sum of its proper divisors (134201).

46446991 is a wasteful number, since it uses less digits than its factorization.

46446991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134200.

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

The square root of 46446991 is about 6815.2029316815. The cubic root of 46446991 is about 359.4616206676.

The spelling of 46446991 in words is "forty-six million, four hundred forty-six thousand, nine hundred ninety-one".