61828469 has 2 divisors, whose sum is σ = 61828470. Its totient is φ = 61828468.

The previous prime is 61828457. The next prime is 61828499. The reversal of 61828469 is 96482816.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48469444 + 13359025 = 6962^2 + 3655^2 .

It is a cyclic number.

It is not a de Polignac number, because 61828469 - 2⁸ = 61828213 is a prime.

It is a super-2 number, since 2×61828469² = 7645519157767922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61828409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30914234 + 30914235.

It is an arithmetic number, because the mean of its divisors is an integer number (30914235).

Almost surely, 2^61828469 is an apocalyptic number.

It is an amenable number.

61828469 is a deficient number, since it is larger than the sum of its proper divisors (1).

61828469 is an equidigital number, since it uses as much as digits as its factorization.

61828469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 44.

The square root of 61828469 is about 7863.1081004905. The cubic root of 61828469 is about 395.4238232482.

The spelling of 61828469 in words is "sixty-one million, eight hundred twenty-eight thousand, four hundred sixty-nine".