9870625305 has 32 divisors (see below), whose sum is σ = 18471350400. Its totient is φ = 4987262016.

The previous prime is 9870625301. The next prime is 9870625307. The reversal of 9870625305 is 5035260789.

It is a happy number.

It is not a de Polignac number, because 9870625305 - 2² = 9870625301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9870625301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1921534 + ... + 1926663.

It is an arithmetic number, because the mean of its divisors is an integer number (577229700).

Almost surely, 2^9870625305 is an apocalyptic number.

9870625305 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9870625305 is a deficient number, since it is larger than the sum of its proper divisors (8600725095).

9870625305 is a wasteful number, since it uses less digits than its factorization.

9870625305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848230 (or 3848224 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 9870625305 is about 99351.0206540426. The cubic root of 9870625305 is about 2145.1033545974.

The spelling of 9870625305 in words is "nine billion, eight hundred seventy million, six hundred twenty-five thousand, three hundred five".