73621087 has 2 divisors, whose sum is σ = 73621088. Its totient is φ = 73621086.

The previous prime is 73621039. The next prime is 73621103. The reversal of 73621087 is 78012637.

It is a strong prime.

It is an emirp because it is prime and its reverse (78012637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73621087 - 2⁷ = 73620959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73621987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36810543 + 36810544.

It is an arithmetic number, because the mean of its divisors is an integer number (36810544).

Almost surely, 2^73621087 is an apocalyptic number.

73621087 is a deficient number, since it is larger than the sum of its proper divisors (1).

73621087 is an equidigital number, since it uses as much as digits as its factorization.

73621087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 73621087 is about 8580.2731308508. The cubic root of 73621087 is about 419.1158403267.

The spelling of 73621087 in words is "seventy-three million, six hundred twenty-one thousand, eighty-seven".