49690777 has 2 divisors, whose sum is σ = 49690778. Its totient is φ = 49690776.

The previous prime is 49690723. The next prime is 49690793. The reversal of 49690777 is 77709694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28933641 + 20757136 = 5379^2 + 4556^2 .

It is a cyclic number.

It is not a de Polignac number, because 49690777 - 2¹⁵ = 49658009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49690777.

It is not a weakly prime, because it can be changed into another prime (49690177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24845388 + 24845389.

It is an arithmetic number, because the mean of its divisors is an integer number (24845389).

Almost surely, 2^49690777 is an apocalyptic number.

It is an amenable number.

49690777 is a deficient number, since it is larger than the sum of its proper divisors (1).

49690777 is an equidigital number, since it uses as much as digits as its factorization.

49690777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 49690777 is about 7049.1685325292. The cubic root of 49690777 is about 367.6421206683.

The spelling of 49690777 in words is "forty-nine million, six hundred ninety thousand, seven hundred seventy-seven".