116721974 has 4 divisors (see below), whose sum is σ = 175082964. Its totient is φ = 58360986.

The previous prime is 116721971. The next prime is 116721977. The reversal of 116721974 is 479127611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 479127611 = 61 ⋅7854551.

It is an interprime number because it is at equal distance from previous prime (116721971) and next prime (116721977).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116721971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29180492 + ... + 29180495.

It is an arithmetic number, because the mean of its divisors is an integer number (43770741).

Almost surely, 2^116721974 is an apocalyptic number.

116721974 is a deficient number, since it is larger than the sum of its proper divisors (58360990).

116721974 is an equidigital number, since it uses as much as digits as its factorization.

116721974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58360989.

The product of its digits is 21168, while the sum is 38.

The square root of 116721974 is about 10803.7944260338. The cubic root of 116721974 is about 488.7096049189.

The spelling of 116721974 in words is "one hundred sixteen million, seven hundred twenty-one thousand, nine hundred seventy-four".