72847290 has 16 divisors (see below), whose sum is σ = 174833568. Its totient is φ = 19425936.

The previous prime is 72847277. The next prime is 72847297. The reversal of 72847290 is 9274827.

It is not an unprimeable number, because it can be changed into a prime (72847297) 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, 1214092 + ... + 1214151.

It is an arithmetic number, because the mean of its divisors is an integer number (10927098).

Almost surely, 2^72847290 is an apocalyptic number.

72847290 is an abundant number, since it is smaller than the sum of its proper divisors (101986278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72847290 is a wasteful number, since it uses less digits than its factorization.

72847290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428253.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 72847290 is about 8535.0623899301. The cubic root of 72847290 is about 417.6422883842.

It can be divided in two parts, 72847 and 290, that added together give a palindrome (73137).

The spelling of 72847290 in words is "seventy-two million, eight hundred forty-seven thousand, two hundred ninety".