87764351 has 2 divisors, whose sum is σ = 87764352. Its totient is φ = 87764350.

The previous prime is 87764321. The next prime is 87764357. The reversal of 87764351 is 15346778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87764351 - 2¹⁰ = 87763327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87764299 and 87764308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87764357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43882175 + 43882176.

It is an arithmetic number, because the mean of its divisors is an integer number (43882176).

Almost surely, 2^87764351 is an apocalyptic number.

87764351 is a deficient number, since it is larger than the sum of its proper divisors (1).

87764351 is an equidigital number, since it uses as much as digits as its factorization.

87764351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 87764351 is about 9368.2629659932. The cubic root of 87764351 is about 444.3986338871.

The spelling of 87764351 in words is "eighty-seven million, seven hundred sixty-four thousand, three hundred fifty-one".