49678965 has 48 divisors (see below), whose sum is σ = 102705408. Its totient is φ = 21719808.

The previous prime is 49678963. The next prime is 49678969. The reversal of 49678965 is 56987694.

It is not a de Polignac number, because 49678965 - 2¹ = 49678963 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49678961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3817 + ... + 10673.

It is an arithmetic number, because the mean of its divisors is an integer number (2139696).

Almost surely, 2^49678965 is an apocalyptic number.

49678965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49678965 is an abundant number, since it is smaller than the sum of its proper divisors (53026443).

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

49678965 is a wasteful number, since it uses less digits than its factorization.

49678965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898 (or 6895 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 49678965 is about 7048.3306534243. The cubic root of 49678965 is about 367.6129876103.

The spelling of 49678965 in words is "forty-nine million, six hundred seventy-eight thousand, nine hundred sixty-five".