61628073 has 16 divisors (see below), whose sum is σ = 90552000. Its totient is φ = 37041984.

The previous prime is 61628059. The next prime is 61628107. The reversal of 61628073 is 37082616.

It is not a de Polignac number, because 61628073 - 2¹⁶ = 61562537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61628023) 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, 16698 + ... + 20051.

It is an arithmetic number, because the mean of its divisors is an integer number (5659500).

Almost surely, 2^61628073 is an apocalyptic number.

It is an amenable number.

61628073 is a deficient number, since it is larger than the sum of its proper divisors (28923927).

61628073 is a wasteful number, since it uses less digits than its factorization.

61628073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36808.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 61628073 is about 7850.3549601276. The cubic root of 61628073 is about 394.9961501521.

The spelling of 61628073 in words is "sixty-one million, six hundred twenty-eight thousand, seventy-three".