49967678 has 4 divisors (see below), whose sum is σ = 74951520. Its totient is φ = 24983838.

The previous prime is 49967657. The next prime is 49967681. The reversal of 49967678 is 87676994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87676994 = 2 ⋅43838497.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12491918 + ... + 12491921.

It is an arithmetic number, because the mean of its divisors is an integer number (18737880).

Almost surely, 2^49967678 is an apocalyptic number.

49967678 is a deficient number, since it is larger than the sum of its proper divisors (24983842).

49967678 is a wasteful number, since it uses less digits than its factorization.

49967678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24983841.

The product of its digits is 4572288, while the sum is 56.

The square root of 49967678 is about 7068.7819318465. The cubic root of 49967678 is about 368.3237492416.

The spelling of 49967678 in words is "forty-nine million, nine hundred sixty-seven thousand, six hundred seventy-eight".