70720322 has 4 divisors (see below), whose sum is σ = 106080486. Its totient is φ = 35360160.

The previous prime is 70720303. The next prime is 70720333. The reversal of 70720322 is 22302707.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68376361 + 2343961 = 8269^2 + 1531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17680079 + ... + 17680082.

Almost surely, 2^70720322 is an apocalyptic number.

70720322 is a deficient number, since it is larger than the sum of its proper divisors (35360164).

70720322 is a wasteful number, since it uses less digits than its factorization.

70720322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35360163.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 70720322 is about 8409.5375616023. The cubic root of 70720322 is about 413.5373525988.

The spelling of 70720322 in words is "seventy million, seven hundred twenty thousand, three hundred twenty-two".