62821261 has 2 divisors, whose sum is σ = 62821262. Its totient is φ = 62821260.

The previous prime is 62821259. The next prime is 62821357. The reversal of 62821261 is 16212826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31573161 + 31248100 = 5619^2 + 5590^2 .

It is a cyclic number.

It is not a de Polignac number, because 62821261 - 2¹ = 62821259 is a prime.

Together with 62821259, 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 (62881261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31410630 + 31410631.

It is an arithmetic number, because the mean of its divisors is an integer number (31410631).

Almost surely, 2^62821261 is an apocalyptic number.

It is an amenable number.

62821261 is a deficient number, since it is larger than the sum of its proper divisors (1).

62821261 is an equidigital number, since it uses as much as digits as its factorization.

62821261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 62821261 is about 7925.9864370310. The cubic root of 62821261 is about 397.5290613353.

The spelling of 62821261 in words is "sixty-two million, eight hundred twenty-one thousand, two hundred sixty-one".