378883787 has 2 divisors, whose sum is σ = 378883788. Its totient is φ = 378883786.

The previous prime is 378883733. The next prime is 378883801. The reversal of 378883787 is 787388873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378883787 - 2¹² = 378879691 is a prime.

It is a super-2 number, since 2×378883787² = 287105848102922738, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (378883717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189441893 + 189441894.

It is an arithmetic number, because the mean of its divisors is an integer number (189441894).

Almost surely, 2^378883787 is an apocalyptic number.

378883787 is a deficient number, since it is larger than the sum of its proper divisors (1).

378883787 is an equidigital number, since it uses as much as digits as its factorization.

378883787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12644352, while the sum is 59.

The square root of 378883787 is about 19464.9373746745. The cubic root of 378883787 is about 723.6057465780.

The spelling of 378883787 in words is "three hundred seventy-eight million, eight hundred eighty-three thousand, seven hundred eighty-seven".