72070622 has 8 divisors (see below), whose sum is σ = 116421816. Its totient is φ = 33263352.

The previous prime is 72070601. The next prime is 72070657. The reversal of 72070622 is 22607027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 2771947 = 72070622 / (7 + 2 + 0 + 7 + 0 + 6 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 72070591 and 72070600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385948 + ... + 1385999.

It is an arithmetic number, because the mean of its divisors is an integer number (14552727).

Almost surely, 2^72070622 is an apocalyptic number.

72070622 is a deficient number, since it is larger than the sum of its proper divisors (44351194).

72070622 is a wasteful number, since it uses less digits than its factorization.

72070622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771962.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 72070622 is about 8489.4417955482. The cubic root of 72070622 is about 416.1527383849.

Adding to 72070622 its reverse (22607027), we get a palindrome (94677649).

The spelling of 72070622 in words is "seventy-two million, seventy thousand, six hundred twenty-two".