72278995 has 16 divisors (see below), whose sum is σ = 90872640. Its totient is φ = 55085184.

The previous prime is 72278993. The next prime is 72279013. The reversal of 72278995 is 59987227.

It is not a de Polignac number, because 72278995 - 2¹ = 72278993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72278993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30721 + ... + 32989.

It is an arithmetic number, because the mean of its divisors is an integer number (5679540).

Almost surely, 2^72278995 is an apocalyptic number.

72278995 is a deficient number, since it is larger than the sum of its proper divisors (18593645).

72278995 is a wasteful number, since it uses less digits than its factorization.

72278995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its digits is 635040, while the sum is 49.

The square root of 72278995 is about 8501.7054171501. The cubic root of 72278995 is about 416.5534173996.

The spelling of 72278995 in words is "seventy-two million, two hundred seventy-eight thousand, nine hundred ninety-five".