84801487 has 2 divisors, whose sum is σ = 84801488. Its totient is φ = 84801486.

The previous prime is 84801473. The next prime is 84801499. The reversal of 84801487 is 78410848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84801487 - 2²³ = 76412879 is a prime.

It is a super-2 number, since 2×84801487² = 14382584394822338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84801187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42400743 + 42400744.

It is an arithmetic number, because the mean of its divisors is an integer number (42400744).

Almost surely, 2^84801487 is an apocalyptic number.

84801487 is a deficient number, since it is larger than the sum of its proper divisors (1).

84801487 is an equidigital number, since it uses as much as digits as its factorization.

84801487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 84801487 is about 9208.7722851638. The cubic root of 84801487 is about 439.3404149755.

The spelling of 84801487 in words is "eighty-four million, eight hundred one thousand, four hundred eighty-seven".