63928390 has 8 divisors (see below), whose sum is σ = 115071120. Its totient is φ = 25571352.

The previous prime is 63928379. The next prime is 63928453. The reversal of 63928390 is 9382936.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3196410 + ... + 3196429.

It is an arithmetic number, because the mean of its divisors is an integer number (14383890).

Almost surely, 2^63928390 is an apocalyptic number.

63928390 is a deficient number, since it is larger than the sum of its proper divisors (51142730).

63928390 is a wasteful number, since it uses less digits than its factorization.

63928390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392846.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 63928390 is about 7995.5231223479. The cubic root of 63928390 is about 399.8507568231.

The spelling of 63928390 in words is "sixty-three million, nine hundred twenty-eight thousand, three hundred ninety".