72270047 has 8 divisors (see below), whose sum is σ = 73774800. Its totient is φ = 70780864.

The previous prime is 72270031. The next prime is 72270049. The reversal of 72270047 is 74007227.

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

It is a cyclic number.

It is not a de Polignac number, because 72270047 - 2⁴ = 72270031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72270049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5729 + ... + 13317.

It is an arithmetic number, because the mean of its divisors is an integer number (9221850).

Almost surely, 2^72270047 is an apocalyptic number.

72270047 is a deficient number, since it is larger than the sum of its proper divisors (1504753).

72270047 is a wasteful number, since it uses less digits than its factorization.

72270047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7785.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 72270047 is about 8501.1791535057. The cubic root of 72270047 is about 416.5362271873.

The spelling of 72270047 in words is "seventy-two million, two hundred seventy thousand, forty-seven".