454220887 has 2 divisors, whose sum is σ = 454220888. Its totient is φ = 454220886.

The previous prime is 454220863. The next prime is 454220927. The reversal of 454220887 is 788022454.

It is an a-pointer prime, because the next prime (454220927) can be obtained adding 454220887 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454220887 - 2²³ = 445832279 is a prime.

It is a super-2 number, since 2×454220887² = 412633228374133538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454220827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227110443 + 227110444.

It is an arithmetic number, because the mean of its divisors is an integer number (227110444).

Almost surely, 2^454220887 is an apocalyptic number.

454220887 is a deficient number, since it is larger than the sum of its proper divisors (1).

454220887 is an equidigital number, since it uses as much as digits as its factorization.

454220887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 454220887 is about 21312.4584926282. The cubic root of 454220887 is about 768.6979101286.

The spelling of 454220887 in words is "four hundred fifty-four million, two hundred twenty thousand, eight hundred eighty-seven".