70770944 has 18 divisors (see below), whose sum is σ = 141265950. Its totient is φ = 35385344.

The previous prime is 70770943. The next prime is 70770971. The reversal of 70770944 is 44907707.

It can be written as a sum of positive squares in only one way, i.e., 53465344 + 17305600 = 7312^2 + 4160^2 .

It is a super-2 number, since 2×70770944² = 10017053029302272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70770898 and 70770907.

It is not an unprimeable number, because it can be changed into a prime (70770943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137969 + ... + 138480.

Almost surely, 2^70770944 is an apocalyptic number.

It is an amenable number.

70770944 is a deficient number, since it is larger than the sum of its proper divisors (70495006).

70770944 is an equidigital number, since it uses as much as digits as its factorization.

70770944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276465 (or 276451 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 70770944 is about 8412.5468200777. The cubic root of 70770944 is about 413.6359998445.

The spelling of 70770944 in words is "seventy million, seven hundred seventy thousand, nine hundred forty-four".