72869347 has 2 divisors, whose sum is σ = 72869348. Its totient is φ = 72869346.

The previous prime is 72869311. The next prime is 72869383. The reversal of 72869347 is 74396827.

It is a balanced prime because it is at equal distance from previous prime (72869311) and next prime (72869383).

It is a cyclic number.

It is not a de Polignac number, because 72869347 - 2²³ = 64480739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72869297 and 72869306.

It is not a weakly prime, because it can be changed into another prime (72869947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36434673 + 36434674.

It is an arithmetic number, because the mean of its divisors is an integer number (36434674).

Almost surely, 2^72869347 is an apocalyptic number.

72869347 is a deficient number, since it is larger than the sum of its proper divisors (1).

72869347 is an equidigital number, since it uses as much as digits as its factorization.

72869347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 72869347 is about 8536.3544326603. The cubic root of 72869347 is about 417.6844359433.

The spelling of 72869347 in words is "seventy-two million, eight hundred sixty-nine thousand, three hundred forty-seven".