7770049 has 4 divisors (see below), whose sum is σ = 8880064. Its totient is φ = 6660036.

The previous prime is 7770041. The next prime is 7770053. The reversal of 7770049 is 9400777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9400777 = 101 ⋅93077.

It is a cyclic number.

It is not a de Polignac number, because 7770049 - 2³ = 7770041 is a prime.

It is a super-2 number, since 2×7770049² = 120747322924802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7769996 and 7770023.

It is not an unprimeable number, because it can be changed into a prime (7770041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554997 + ... + 555010.

It is an arithmetic number, because the mean of its divisors is an integer number (2220016).

Almost surely, 2^7770049 is an apocalyptic number.

It is an amenable number.

7770049 is a deficient number, since it is larger than the sum of its proper divisors (1110015).

7770049 is a wasteful number, since it uses less digits than its factorization.

7770049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110014.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 7770049 is about 2787.4807622655. The cubic root of 7770049 is about 198.0650825060.

The spelling of 7770049 in words is "seven million, seven hundred seventy thousand, forty-nine".