93147990 has 32 divisors (see below), whose sum is σ = 240752736. Its totient is φ = 22928640.

The previous prime is 93147983. The next prime is 93147991. The reversal of 93147990 is 9974139.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93147991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119031 + ... + 119810.

It is an arithmetic number, because the mean of its divisors is an integer number (7523523).

Almost surely, 2^93147990 is an apocalyptic number.

93147990 is an abundant number, since it is smaller than the sum of its proper divisors (147604746).

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

93147990 is a wasteful number, since it uses less digits than its factorization.

93147990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238864.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 93147990 is about 9651.3206350219. The cubic root of 93147990 is about 453.3056818246.

The spelling of 93147990 in words is "ninety-three million, one hundred forty-seven thousand, nine hundred ninety".