123764890 has 16 divisors (see below), whose sum is σ = 226553760. Its totient is φ = 48666640.

The previous prime is 123764881. The next prime is 123764899. The reversal of 123764890 is 98467321.

It is an interprime number because it is at equal distance from previous prime (123764881) and next prime (123764899).

It is not an unprimeable number, because it can be changed into a prime (123764899) 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, 104296 + ... + 105475.

It is an arithmetic number, because the mean of its divisors is an integer number (14159610).

Almost surely, 2^123764890 is an apocalyptic number.

123764890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123764890 is a deficient number, since it is larger than the sum of its proper divisors (102788870).

123764890 is a wasteful number, since it uses less digits than its factorization.

123764890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209837.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 123764890 is about 11124.9669662431. The cubic root of 123764890 is about 498.3477327065.

The spelling of 123764890 in words is "one hundred twenty-three million, seven hundred sixty-four thousand, eight hundred ninety".