288976381 has 2 divisors, whose sum is σ = 288976382. Its totient is φ = 288976380.

The previous prime is 288976367. The next prime is 288976399. The reversal of 288976381 is 183679882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253096281 + 35880100 = 15909^2 + 5990^2 .

It is a cyclic number.

It is not a de Polignac number, because 288976381 - 2⁵ = 288976349 is a prime.

It is a super-2 number, since 2×288976381² = 167014697551714322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288976321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144488190 + 144488191.

It is an arithmetic number, because the mean of its divisors is an integer number (144488191).

Almost surely, 2^288976381 is an apocalyptic number.

It is an amenable number.

288976381 is a deficient number, since it is larger than the sum of its proper divisors (1).

288976381 is an equidigital number, since it uses as much as digits as its factorization.

288976381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The square root of 288976381 is about 16999.3053093354. The cubic root of 288976381 is about 661.1308901949.

The spelling of 288976381 in words is "two hundred eighty-eight million, nine hundred seventy-six thousand, three hundred eighty-one".