73426487 has 2 divisors, whose sum is σ = 73426488. Its totient is φ = 73426486.

The previous prime is 73426481. The next prime is 73426489. The reversal of 73426487 is 78462437.

It is a strong prime.

It is an emirp because it is prime and its reverse (78462437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73426487 - 2¹⁰ = 73425463 is a prime.

It is a super-2 number, since 2×73426487² = 10782897986322338, which contains 22 as substring.

Together with 73426489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73426481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36713243 + 36713244.

It is an arithmetic number, because the mean of its divisors is an integer number (36713244).

Almost surely, 2^73426487 is an apocalyptic number.

73426487 is a deficient number, since it is larger than the sum of its proper divisors (1).

73426487 is an equidigital number, since it uses as much as digits as its factorization.

73426487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 41.

The square root of 73426487 is about 8568.9256619485. The cubic root of 73426487 is about 418.7462364851.

The spelling of 73426487 in words is "seventy-three million, four hundred twenty-six thousand, four hundred eighty-seven".