46781964 has 18 divisors (see below), whose sum is σ = 118254500. Its totient is φ = 15593976.

The previous prime is 46781963. The next prime is 46781993. The reversal of 46781964 is 46918764.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (46781963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649714 + ... + 649785.

Almost surely, 2^46781964 is an apocalyptic number.

It is an amenable number.

46781964 is an abundant number, since it is smaller than the sum of its proper divisors (71472536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

46781964 is a wasteful number, since it uses less digits than its factorization.

46781964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299509 (or 1299504 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 46781964 is about 6839.7342053621. The cubic root of 46781964 is about 360.3236903514.

The spelling of 46781964 in words is "forty-six million, seven hundred eighty-one thousand, nine hundred sixty-four".