61307903 has 8 divisors (see below), whose sum is σ = 65059200. Its totient is φ = 57647128.

The previous prime is 61307891. The next prime is 61307923. The reversal of 61307903 is 30970316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61307903 - 2⁶ = 61307839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61307923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21233 + ... + 23946.

It is an arithmetic number, because the mean of its divisors is an integer number (8132400).

Almost surely, 2^61307903 is an apocalyptic number.

61307903 is a deficient number, since it is larger than the sum of its proper divisors (3751297).

61307903 is a wasteful number, since it uses less digits than its factorization.

61307903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45261.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 61307903 is about 7829.9363343516. The cubic root of 61307903 is about 394.3109345209.

The spelling of 61307903 in words is "sixty-one million, three hundred seven thousand, nine hundred three".