769239147 has 4 divisors (see below), whose sum is σ = 1025652200. Its totient is φ = 512826096.

The previous prime is 769239143. The next prime is 769239151. The reversal of 769239147 is 741932967.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741932967 = 3 ⋅247310989.

It is an interprime number because it is at equal distance from previous prime (769239143) and next prime (769239151).

It is not a de Polignac number, because 769239147 - 2² = 769239143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 769239096 and 769239105.

It is not an unprimeable number, because it can be changed into a prime (769239143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128206522 + ... + 128206527.

It is an arithmetic number, because the mean of its divisors is an integer number (256413050).

Almost surely, 2^769239147 is an apocalyptic number.

769239147 is a deficient number, since it is larger than the sum of its proper divisors (256413053).

769239147 is a wasteful number, since it uses less digits than its factorization.

769239147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256413052.

The product of its digits is 571536, while the sum is 48.

The square root of 769239147 is about 27735.1608432329. The cubic root of 769239147 is about 916.2636534231.

The spelling of 769239147 in words is "seven hundred sixty-nine million, two hundred thirty-nine thousand, one hundred forty-seven".