49374781 has 2 divisors, whose sum is σ = 49374782. Its totient is φ = 49374780.

The previous prime is 49374757. The next prime is 49374821. The reversal of 49374781 is 18747394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48580900 + 793881 = 6970^2 + 891^2 .

It is a cyclic number.

It is not a de Polignac number, because 49374781 - 2¹⁷ = 49243709 is a prime.

It is a super-2 number, since 2×49374781² = 4875737997595922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49372781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24687390 + 24687391.

It is an arithmetic number, because the mean of its divisors is an integer number (24687391).

Almost surely, 2^49374781 is an apocalyptic number.

It is an amenable number.

49374781 is a deficient number, since it is larger than the sum of its proper divisors (1).

49374781 is an equidigital number, since it uses as much as digits as its factorization.

49374781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 49374781 is about 7026.7190779197. The cubic root of 49374781 is about 366.8611536633.

The spelling of 49374781 in words is "forty-nine million, three hundred seventy-four thousand, seven hundred eighty-one".