72797806 has 24 divisors (see below), whose sum is σ = 115665480. Its totient is φ = 34355376.

The previous prime is 72797761. The next prime is 72797807. The reversal of 72797806 is 60879727.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72797807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87400 + ... + 88228.

It is an arithmetic number, because the mean of its divisors is an integer number (4819395).

Almost surely, 2^72797806 is an apocalyptic number.

72797806 is a deficient number, since it is larger than the sum of its proper divisors (42867674).

72797806 is a wasteful number, since it uses less digits than its factorization.

72797806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 72797806 is about 8532.1630317288. The cubic root of 72797806 is about 417.5477010529.

The spelling of 72797806 in words is "seventy-two million, seven hundred ninety-seven thousand, eight hundred six".