49807961 has 6 divisors (see below), whose sum is σ = 57939930. Its totient is φ = 42692496.

The previous prime is 49807951. The next prime is 49807963. The reversal of 49807961 is 16970894.

It can be written as a sum of positive squares in only one way, i.e., 45630025 + 4177936 = 6755^2 + 2044^2 .

It is not a de Polignac number, because 49807961 - 2⁶ = 49807897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49807963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 508196 + ... + 508293.

It is an arithmetic number, because the mean of its divisors is an integer number (9656655).

Almost surely, 2^49807961 is an apocalyptic number.

It is an amenable number.

49807961 is a deficient number, since it is larger than the sum of its proper divisors (8131969).

49807961 is a wasteful number, since it uses less digits than its factorization.

49807961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016503 (or 1016496 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 49807961 is about 7057.4755401631. The cubic root of 49807961 is about 367.9308929187.

The spelling of 49807961 in words is "forty-nine million, eight hundred seven thousand, nine hundred sixty-one".