7390987493 has 2 divisors, whose sum is σ = 7390987494. Its totient is φ = 7390987492.

The previous prime is 7390987477. The next prime is 7390987501. The reversal of 7390987493 is 3947890937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5616303364 + 1774684129 = 74942^2 + 42127^2 .

It is a cyclic number.

It is not a de Polignac number, because 7390987493 - 2⁴ = 7390987477 is a prime.

It is a super-2 number, since 2×7390987493² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7390987453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3695493746 + 3695493747.

It is an arithmetic number, because the mean of its divisors is an integer number (3695493747).

Almost surely, 2^7390987493 is an apocalyptic number.

It is an amenable number.

7390987493 is a deficient number, since it is larger than the sum of its proper divisors (1).

7390987493 is an equidigital number, since it uses as much as digits as its factorization.

7390987493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The square root of 7390987493 is about 85970.8525780686. The cubic root of 7390987493 is about 1947.9037295872.

The spelling of 7390987493 in words is "seven billion, three hundred ninety million, nine hundred eighty-seven thousand, four hundred ninety-three".