72806870 has 8 divisors (see below), whose sum is σ = 131052384. Its totient is φ = 29122744.

The previous prime is 72806831. The next prime is 72806887. The reversal of 72806870 is 7860827.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3640334 + ... + 3640353.

It is an arithmetic number, because the mean of its divisors is an integer number (16381548).

Almost surely, 2^72806870 is an apocalyptic number.

72806870 is a deficient number, since it is larger than the sum of its proper divisors (58245514).

72806870 is a wasteful number, since it uses less digits than its factorization.

72806870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7280694.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 72806870 is about 8532.6941817928. The cubic root of 72806870 is about 417.5650298503.

The spelling of 72806870 in words is "seventy-two million, eight hundred six thousand, eight hundred seventy".