49279645 has 4 divisors (see below), whose sum is σ = 59135580. Its totient is φ = 39423712.

The previous prime is 49279619. The next prime is 49279661. The reversal of 49279645 is 54697294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13793796 + 35485849 = 3714^2 + 5957^2 .

It is a cyclic number.

It is not a de Polignac number, because 49279645 - 2¹⁵ = 49246877 is a prime.

It is a super-2 number, since 2×49279645² = 4856966822652050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49279595 and 49279604.

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, 4927960 + ... + 4927969.

It is an arithmetic number, because the mean of its divisors is an integer number (14783895).

Almost surely, 2^49279645 is an apocalyptic number.

It is an amenable number.

49279645 is a deficient number, since it is larger than the sum of its proper divisors (9855935).

49279645 is an equidigital number, since it uses as much as digits as its factorization.

49279645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9855934.

The product of its digits is 544320, while the sum is 46.

The square root of 49279645 is about 7019.9462248653. The cubic root of 49279645 is about 366.6253778118.

The spelling of 49279645 in words is "forty-nine million, two hundred seventy-nine thousand, six hundred forty-five".