87774853 has 2 divisors, whose sum is σ = 87774854. Its totient is φ = 87774852.

The previous prime is 87774829. The next prime is 87774881. The reversal of 87774853 is 35847778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47032164 + 40742689 = 6858^2 + 6383^2 .

It is a cyclic number.

It is not a de Polignac number, because 87774853 - 2¹³ = 87766661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87774797 and 87774806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87724853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43887426 + 43887427.

It is an arithmetic number, because the mean of its divisors is an integer number (43887427).

Almost surely, 2^87774853 is an apocalyptic number.

It is an amenable number.

87774853 is a deficient number, since it is larger than the sum of its proper divisors (1).

87774853 is an equidigital number, since it uses as much as digits as its factorization.

87774853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1317120, while the sum is 49.

The square root of 87774853 is about 9368.8234586847. The cubic root of 87774853 is about 444.4163589590.

The spelling of 87774853 in words is "eighty-seven million, seven hundred seventy-four thousand, eight hundred fifty-three".