139678710 has 16 divisors (see below), whose sum is σ = 335228976. Its totient is φ = 37247648.

The previous prime is 139678699. The next prime is 139678717. The reversal of 139678710 is 17876931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139678717) 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, 2327949 + ... + 2328008.

It is an arithmetic number, because the mean of its divisors is an integer number (20951811).

Almost surely, 2^139678710 is an apocalyptic number.

139678710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139678710 is an abundant number, since it is smaller than the sum of its proper divisors (195550266).

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

139678710 is a wasteful number, since it uses less digits than its factorization.

139678710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655967.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 139678710 is about 11818.5747871729. The cubic root of 139678710 is about 518.8518925026.

The spelling of 139678710 in words is "one hundred thirty-nine million, six hundred seventy-eight thousand, seven hundred ten".