3890863 has 2 divisors, whose sum is σ = 3890864. Its totient is φ = 3890862.

The previous prime is 3890851. The next prime is 3890879. The reversal of 3890863 is 3680983.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3680983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3890863 - 2⁹ = 3890351 is a prime.

It is equal to p₂₇₅₉₉₅ and since 3890863 and 275995 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3890833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945431 + 1945432.

It is an arithmetic number, because the mean of its divisors is an integer number (1945432).

Almost surely, 2^3890863 is an apocalyptic number.

3890863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890863 is an equidigital number, since it uses as much as digits as its factorization.

3890863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3890863 is about 1972.5270593835. The cubic root of 3890863 is about 157.2830708010.

It can be divided in two parts, 3890 and 863, that added together give a triangular number (4753 = T₉₇).

The spelling of 3890863 in words is "three million, eight hundred ninety thousand, eight hundred sixty-three".