71909230 has 16 divisors (see below), whose sum is σ = 129656880. Its totient is φ = 28714752.

The previous prime is 71909221. The next prime is 71909237. The reversal of 71909230 is 3290917.

It is a super-3 number, since 3×71909230³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71909192 and 71909201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71909237) 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, 382 + ... + 11998.

It is an arithmetic number, because the mean of its divisors is an integer number (8103555).

Almost surely, 2^71909230 is an apocalyptic number.

71909230 is a deficient number, since it is larger than the sum of its proper divisors (57747650).

71909230 is a wasteful number, since it uses less digits than its factorization.

71909230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12243.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 71909230 is about 8479.9310138703. The cubic root of 71909230 is about 415.8418677513.

The spelling of 71909230 in words is "seventy-one million, nine hundred nine thousand, two hundred thirty".