75072686 has 16 divisors (see below), whose sum is σ = 127654800. Its totient is φ = 32825088.

The previous prime is 75072671. The next prime is 75072703. The reversal of 75072686 is 68627057.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 75491 + ... + 76478.

It is an arithmetic number, because the mean of its divisors is an integer number (7978425).

Almost surely, 2^75072686 is an apocalyptic number.

75072686 is a deficient number, since it is larger than the sum of its proper divisors (52582114).

75072686 is a wasteful number, since it uses less digits than its factorization.

75072686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152003.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 75072686 is about 8664.4495497406. The cubic root of 75072686 is about 421.8525236567.

The spelling of 75072686 in words is "seventy-five million, seventy-two thousand, six hundred eighty-six".