49690765 has 4 divisors (see below), whose sum is σ = 59628924. Its totient is φ = 39752608.

The previous prime is 49690723. The next prime is 49690777. The reversal of 49690765 is 56709694.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56709694 = 2 ⋅28354847.

It can be written as a sum of positive squares in 2 ways, for example, as 15139881 + 34550884 = 3891^2 + 5878^2 .

It is a cyclic number.

It is not a de Polignac number, because 49690765 - 2¹³ = 49682573 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4969072 + ... + 4969081.

It is an arithmetic number, because the mean of its divisors is an integer number (14907231).

Almost surely, 2^49690765 is an apocalyptic number.

It is an amenable number.

49690765 is a deficient number, since it is larger than the sum of its proper divisors (9938159).

49690765 is an equidigital number, since it uses as much as digits as its factorization.

49690765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9938158.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 49690765 is about 7049.1676813649. The cubic root of 49690765 is about 367.6420910739.

Adding to 49690765 its product of nonzero digits (408240), we get a palindrome (50099005).

It can be divided in two parts, 4 and 9690765, that added together give a square (9690769 = 3113²).

The spelling of 49690765 in words is "forty-nine million, six hundred ninety thousand, seven hundred sixty-five".