61903207 has 8 divisors (see below), whose sum is σ = 62421840. Its totient is φ = 61387200.

The previous prime is 61903201. The next prime is 61903241. The reversal of 61903207 is 70230916.

61903207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61903207 - 2³ = 61903199 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61903201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87957 + ... + 88657.

It is an arithmetic number, because the mean of its divisors is an integer number (7802730).

Almost surely, 2^61903207 is an apocalyptic number.

61903207 is a deficient number, since it is larger than the sum of its proper divisors (518633).

61903207 is a wasteful number, since it uses less digits than its factorization.

61903207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 61903207 is about 7867.8591116008. The cubic root of 61903207 is about 395.5830879917.

The spelling of 61903207 in words is "sixty-one million, nine hundred three thousand, two hundred seven".