70779125 has 8 divisors (see below), whose sum is σ = 88332504. Its totient is φ = 56623200.

The previous prime is 70779097. The next prime is 70779127. The reversal of 70779125 is 52197707.

It can be written as a sum of positive squares in 4 ways, for example, as 1456849 + 69322276 = 1207^2 + 8326^2 .

It is not a de Polignac number, because 70779125 - 2¹⁰ = 70778101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70779127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282992 + ... + 283241.

It is an arithmetic number, because the mean of its divisors is an integer number (11041563).

Almost surely, 2^70779125 is an apocalyptic number.

It is an amenable number.

70779125 is a deficient number, since it is larger than the sum of its proper divisors (17553379).

70779125 is an equidigital number, since it uses as much as digits as its factorization.

70779125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566248 (or 566238 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 70779125 is about 8413.0330440335. The cubic root of 70779125 is about 413.6519377683.

The spelling of 70779125 in words is "seventy million, seven hundred seventy-nine thousand, one hundred twenty-five".