386429997 has 4 divisors (see below), whose sum is σ = 515240000. Its totient is φ = 257619996.

The previous prime is 386429987. The next prime is 386430013. The reversal of 386429997 is 799924683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 386429997 - 2⁶ = 386429933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386429917) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 64404997 + ... + 64405002.

It is an arithmetic number, because the mean of its divisors is an integer number (128810000).

Almost surely, 2^386429997 is an apocalyptic number.

It is an amenable number.

386429997 is a deficient number, since it is larger than the sum of its proper divisors (128810003).

386429997 is a wasteful number, since it uses less digits than its factorization.

386429997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128810002.

The product of its digits is 5878656, while the sum is 57.

The square root of 386429997 is about 19657.8227939922. The cubic root of 386429997 is about 728.3782079860.

The spelling of 386429997 in words is "three hundred eighty-six million, four hundred twenty-nine thousand, nine hundred ninety-seven".