70776049 has 4 divisors (see below), whose sum is σ = 74939364. Its totient is φ = 66612736.

The previous prime is 70776011. The next prime is 70776059. The reversal of 70776049 is 94067707.

It is a happy number.

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 65286400 + 5489649 = 8080^2 + 2343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70776049 is a prime.

It is a super-2 number, since 2×70776049² = 10018498224100802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70776059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081632 + ... + 2081665.

It is an arithmetic number, because the mean of its divisors is an integer number (18734841).

Almost surely, 2^70776049 is an apocalyptic number.

It is an amenable number.

70776049 is a deficient number, since it is larger than the sum of its proper divisors (4163315).

70776049 is a wasteful number, since it uses less digits than its factorization.

70776049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163314.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 70776049 is about 8412.8502304510. The cubic root of 70776049 is about 413.6459453621.

The spelling of 70776049 in words is "seventy million, seven hundred seventy-six thousand, forty-nine".