7340420987 has 2 divisors, whose sum is σ = 7340420988. Its totient is φ = 7340420986.

The previous prime is 7340420929. The next prime is 7340420999. The reversal of 7340420987 is 7890240437.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7340420987 - 2³⁰ = 6266679163 is a prime.

It is a super-3 number, since 3×7340420987³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (7340420287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3670210493 + 3670210494.

It is an arithmetic number, because the mean of its divisors is an integer number (3670210494).

Almost surely, 2^7340420987 is an apocalyptic number.

7340420987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7340420987 is an equidigital number, since it uses as much as digits as its factorization.

7340420987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 7340420987 is about 85676.2568451727. The cubic root of 7340420987 is about 1943.4512720311.

The spelling of 7340420987 in words is "seven billion, three hundred forty million, four hundred twenty thousand, nine hundred eighty-seven".