75620638 has 8 divisors (see below), whose sum is σ = 113940288. Its totient is φ = 37640544.

The previous prime is 75620621. The next prime is 75620639. The reversal of 75620638 is 83602657.

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

It is a junction number, because it is equal to n+sod(n) for n = 75620597 and 75620606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75620639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84331 + ... + 85222.

It is an arithmetic number, because the mean of its divisors is an integer number (14242536).

Almost surely, 2^75620638 is an apocalyptic number.

75620638 is a deficient number, since it is larger than the sum of its proper divisors (38319650).

75620638 is a wasteful number, since it uses less digits than its factorization.

75620638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169778.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 75620638 is about 8696.0127644801. The cubic root of 75620638 is about 422.8763971828.

The spelling of 75620638 in words is "seventy-five million, six hundred twenty thousand, six hundred thirty-eight".