61682013 has 16 divisors (see below), whose sum is σ = 92289600. Its totient is φ = 40712400.

The previous prime is 61682011. The next prime is 61682017. The reversal of 61682013 is 31028616.

It is not a de Polignac number, because 61682013 - 2¹ = 61682011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61682011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8583 + ... + 14036.

It is an arithmetic number, because the mean of its divisors is an integer number (5768100).

Almost surely, 2^61682013 is an apocalyptic number.

It is an amenable number.

61682013 is a deficient number, since it is larger than the sum of its proper divisors (30607587).

61682013 is a wasteful number, since it uses less digits than its factorization.

61682013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22729 (or 22723 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 61682013 is about 7853.7897221660. The cubic root of 61682013 is about 395.1113567361. Note that the first 3 decimals are identical.

The spelling of 61682013 in words is "sixty-one million, six hundred eighty-two thousand, thirteen".