49647678 has 32 divisors (see below), whose sum is σ = 102961152. Its totient is φ = 15943200.

The previous prime is 49647677. The next prime is 49647691. The reversal of 49647678 is 87674694.

It is a self number, because there is not a number n which added to its sum of digits gives 49647678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49647677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54043 + ... + 54953.

It is an arithmetic number, because the mean of its divisors is an integer number (3217536).

Almost surely, 2^49647678 is an apocalyptic number.

49647678 is an abundant number, since it is smaller than the sum of its proper divisors (53313474).

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

49647678 is a wasteful number, since it uses less digits than its factorization.

49647678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240.

The product of its digits is 2032128, while the sum is 51.

The square root of 49647678 is about 7046.1108421597. The cubic root of 49647678 is about 367.5357991874.

The spelling of 49647678 in words is "forty-nine million, six hundred forty-seven thousand, six hundred seventy-eight".