49997894 has 4 divisors (see below), whose sum is σ = 74996844. Its totient is φ = 24998946.

The previous prime is 49997891. The next prime is 49997897. The reversal of 49997894 is 49879994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49879994 = 2 ⋅24939997.

It is an interprime number because it is at equal distance from previous prime (49997891) and next prime (49997897).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49997891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12499472 + ... + 12499475.

It is an arithmetic number, because the mean of its divisors is an integer number (18749211).

Almost surely, 2^49997894 is an apocalyptic number.

49997894 is a deficient number, since it is larger than the sum of its proper divisors (24998950).

49997894 is a wasteful number, since it uses less digits than its factorization.

49997894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24998949.

The product of its digits is 5878656, while the sum is 59.

The square root of 49997894 is about 7070.9188936092. The cubic root of 49997894 is about 368.3979774112.

The spelling of 49997894 in words is "forty-nine million, nine hundred ninety-seven thousand, eight hundred ninety-four".