61849321 has 4 divisors (see below), whose sum is σ = 63165312. Its totient is φ = 60533332.

The previous prime is 61849297. The next prime is 61849327. The reversal of 61849321 is 12394816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61849321 - 2¹⁷ = 61718249 is a prime.

It is a super-2 number, since 2×61849321² = 7650677016322082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61849327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657925 + ... + 658018.

It is an arithmetic number, because the mean of its divisors is an integer number (15791328).

Almost surely, 2^61849321 is an apocalyptic number.

It is an amenable number.

61849321 is a deficient number, since it is larger than the sum of its proper divisors (1315991).

61849321 is a wasteful number, since it uses less digits than its factorization.

61849321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315990.

The product of its digits is 10368, while the sum is 34.

The square root of 61849321 is about 7864.4339274992. The cubic root of 61849321 is about 395.4682712235.

The spelling of 61849321 in words is "sixty-one million, eight hundred forty-nine thousand, three hundred twenty-one".