72077422 has 8 divisors (see below), whose sum is σ = 108158400. Its totient is φ = 36024624.

The previous prime is 72077419. The next prime is 72077437. The reversal of 72077422 is 22477027.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354 + ... + 12082.

It is an arithmetic number, because the mean of its divisors is an integer number (13519800).

Almost surely, 2^72077422 is an apocalyptic number.

72077422 is a deficient number, since it is larger than the sum of its proper divisors (36080978).

72077422 is a wasteful number, since it uses less digits than its factorization.

72077422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14090.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 72077422 is about 8489.8422835763. The cubic root of 72077422 is about 416.1658262403.

The spelling of 72077422 in words is "seventy-two million, seventy-seven thousand, four hundred twenty-two".