72070606 has 4 divisors (see below), whose sum is σ = 108105912. Its totient is φ = 36035302.

The previous prime is 72070601. The next prime is 72070657. The reversal of 72070606 is 60607027.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72070601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18017650 + ... + 18017653.

It is an arithmetic number, because the mean of its divisors is an integer number (27026478).

Almost surely, 2^72070606 is an apocalyptic number.

72070606 is a deficient number, since it is larger than the sum of its proper divisors (36035306).

72070606 is a wasteful number, since it uses less digits than its factorization.

72070606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36035305.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 72070606 is about 8489.4408532011. The cubic root of 72070606 is about 416.1527075890.

The spelling of 72070606 in words is "seventy-two million, seventy thousand, six hundred six".