72279950 has 12 divisors (see below), whose sum is σ = 134440800. Its totient is φ = 28911960.

The previous prime is 72279929. The next prime is 72279959. The reversal of 72279950 is 5997227.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72279898 and 72279907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72279959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 722750 + ... + 722849.

It is an arithmetic number, because the mean of its divisors is an integer number (11203400).

Almost surely, 2^72279950 is an apocalyptic number.

72279950 is a deficient number, since it is larger than the sum of its proper divisors (62160850).

72279950 is a wasteful number, since it uses less digits than its factorization.

72279950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445611 (or 1445606 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 72279950 is about 8501.7615821664. The cubic root of 72279950 is about 416.5552519887. Note that the first 3 decimals are identical.

The spelling of 72279950 in words is "seventy-two million, two hundred seventy-nine thousand, nine hundred fifty".