7346249821 has 2 divisors, whose sum is σ = 7346249822. Its totient is φ = 7346249820.

The previous prime is 7346249803. The next prime is 7346249839. The reversal of 7346249821 is 1289426437.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (7346249803) and next prime (7346249839).

It can be written as a sum of positive squares in only one way, i.e., 5926844196 + 1419405625 = 76986^2 + 37675^2 .

It is a cyclic number.

It is not a de Polignac number, because 7346249821 - 2¹³ = 7346241629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7346249861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3673124910 + 3673124911.

It is an arithmetic number, because the mean of its divisors is an integer number (3673124911).

Almost surely, 2^7346249821 is an apocalyptic number.

It is an amenable number.

7346249821 is a deficient number, since it is larger than the sum of its proper divisors (1).

7346249821 is an equidigital number, since it uses as much as digits as its factorization.

7346249821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 7346249821 is about 85710.2667187543. The cubic root of 7346249821 is about 1943.9655503338.

The spelling of 7346249821 in words is "seven billion, three hundred forty-six million, two hundred forty-nine thousand, eight hundred twenty-one".