49894947 has 14 divisors (see below), whose sum is σ = 74809292. Its totient is φ = 33262812.

The previous prime is 49894937. The next prime is 49894961. The reversal of 49894947 is 74949894.

It is a happy number.

It is not a de Polignac number, because 49894947 - 2⁶ = 49894883 is a prime.

It is a super-2 number, since 2×49894947² = 4979011472265618, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49894893 and 49894902.

It is not an unprimeable number, because it can be changed into a prime (49894937) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 33493 + ... + 34950.

Almost surely, 2^49894947 is an apocalyptic number.

49894947 is a deficient number, since it is larger than the sum of its proper divisors (24914345).

49894947 is an frugal number, since it uses more digits than its factorization.

49894947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68461 (or 68446 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 49894947 is about 7063.6355370305. The cubic root of 49894947 is about 368.1449565790.

The spelling of 49894947 in words is "forty-nine million, eight hundred ninety-four thousand, nine hundred forty-seven".