75197620 has 12 divisors (see below), whose sum is σ = 157915044. Its totient is φ = 30079040.

The previous prime is 75197597. The next prime is 75197621. The reversal of 75197620 is 2679157.

It can be written as a sum of positive squares in 2 ways, for example, as 48385936 + 26811684 = 6956^2 + 5178^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75197620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75197621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1879921 + ... + 1879960.

It is an arithmetic number, because the mean of its divisors is an integer number (13159587).

Almost surely, 2^75197620 is an apocalyptic number.

It is an amenable number.

75197620 is an abundant number, since it is smaller than the sum of its proper divisors (82717424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75197620 is a wasteful number, since it uses less digits than its factorization.

75197620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759890 (or 3759888 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 75197620 is about 8671.6561278685. The cubic root of 75197620 is about 422.0864059422.

The spelling of 75197620 in words is "seventy-five million, one hundred ninety-seven thousand, six hundred twenty".