287472903397 has 2 divisors, whose sum is σ = 287472903398. Its totient is φ = 287472903396.

The previous prime is 287472903329. The next prime is 287472903407. The reversal of 287472903397 is 793309274782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165745880161 + 121727023236 = 407119^2 + 348894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-287472903397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287472903097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143736451698 + 143736451699.

It is an arithmetic number, because the mean of its divisors is an integer number (143736451699).

Almost surely, 2^287472903397 is an apocalyptic number.

It is an amenable number.

287472903397 is a deficient number, since it is larger than the sum of its proper divisors (1).

287472903397 is an equidigital number, since it uses as much as digits as its factorization.

287472903397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 287472903397 in words is "two hundred eighty-seven billion, four hundred seventy-two million, nine hundred three thousand, three hundred ninety-seven".