46978949 has 8 divisors (see below), whose sum is σ = 49090560. Its totient is φ = 44873136.

The previous prime is 46978909. The next prime is 46978961. The reversal of 46978949 is 94987964.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46978949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46978894 and 46978903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46978909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28619 + ... + 30215.

It is an arithmetic number, because the mean of its divisors is an integer number (6136320).

Almost surely, 2^46978949 is an apocalyptic number.

It is an amenable number.

46978949 is a deficient number, since it is larger than the sum of its proper divisors (2111611).

46978949 is a wasteful number, since it uses less digits than its factorization.

46978949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899.

The product of its digits is 3919104, while the sum is 56.

The square root of 46978949 is about 6854.1191264815. The cubic root of 46978949 is about 360.8287209623.

The spelling of 46978949 in words is "forty-six million, nine hundred seventy-eight thousand, nine hundred forty-nine".