107428731 has 8 divisors (see below), whose sum is σ = 148177680. Its totient is φ = 69149472.

The previous prime is 107428639. The next prime is 107428759. The reversal of 107428731 is 137824701.

It is a happy number.

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

It is not a de Polignac number, because 107428731 - 2¹⁰ = 107427707 is a prime.

It is a super-2 number, since 2×107428731² = 23081864488540722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 107428692 and 107428701.

It is not an unprimeable number, because it can be changed into a prime (107428031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617320 + ... + 617493.

It is an arithmetic number, because the mean of its divisors is an integer number (18522210).

Almost surely, 2^107428731 is an apocalyptic number.

107428731 is a deficient number, since it is larger than the sum of its proper divisors (40748949).

107428731 is a wasteful number, since it uses less digits than its factorization.

107428731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234845.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 107428731 is about 10364.7832104680. The cubic root of 107428731 is about 475.3791705600.

The spelling of 107428731 in words is "one hundred seven million, four hundred twenty-eight thousand, seven hundred thirty-one".