87404077 has 2 divisors, whose sum is σ = 87404078. Its totient is φ = 87404076.

The previous prime is 87404069. The next prime is 87404111. The reversal of 87404077 is 77040478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84750436 + 2653641 = 9206^2 + 1629^2 .

It is a cyclic number.

It is not a de Polignac number, because 87404077 - 2³ = 87404069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87404377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43702038 + 43702039.

It is an arithmetic number, because the mean of its divisors is an integer number (43702039).

Almost surely, 2^87404077 is an apocalyptic number.

It is an amenable number.

87404077 is a deficient number, since it is larger than the sum of its proper divisors (1).

87404077 is an equidigital number, since it uses as much as digits as its factorization.

87404077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 87404077 is about 9349.0147609253. The cubic root of 87404077 is about 443.7897121902.

The spelling of 87404077 in words is "eighty-seven million, four hundred four thousand, seventy-seven".