61657803 has 12 divisors (see below), whose sum is σ = 89561160. Its totient is φ = 40874496.

The previous prime is 61657801. The next prime is 61657823. The reversal of 61657803 is 30875616.

It is not a de Polignac number, because 61657803 - 2¹ = 61657801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61657801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17526 + ... + 20747.

It is an arithmetic number, because the mean of its divisors is an integer number (7463430).

Almost surely, 2^61657803 is an apocalyptic number.

61657803 is a deficient number, since it is larger than the sum of its proper divisors (27903357).

61657803 is a wasteful number, since it uses less digits than its factorization.

61657803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38458 (or 38455 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 61657803 is about 7852.2482767676. The cubic root of 61657803 is about 395.0596566415.

The spelling of 61657803 in words is "sixty-one million, six hundred fifty-seven thousand, eight hundred three".