87623047 has 2 divisors, whose sum is σ = 87623048. Its totient is φ = 87623046.

The previous prime is 87623009. The next prime is 87623089. The reversal of 87623047 is 74032678.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87623047 - 2²³ = 79234439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87622997 and 87623015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87623147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43811523 + 43811524.

It is an arithmetic number, because the mean of its divisors is an integer number (43811524).

Almost surely, 2^87623047 is an apocalyptic number.

87623047 is a deficient number, since it is larger than the sum of its proper divisors (1).

87623047 is an equidigital number, since it uses as much as digits as its factorization.

87623047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 87623047 is about 9360.7182950883. The cubic root of 87623047 is about 444.1600061110.

The spelling of 87623047 in words is "eighty-seven million, six hundred twenty-three thousand, forty-seven".