1973396115 has 20 divisors (see below), whose sum is σ = 3537495984. Its totient is φ = 1052477712.

The previous prime is 1973396111. The next prime is 1973396129. The reversal of 1973396115 is 5116933791.

It is a happy number.

It is not a de Polignac number, because 1973396115 - 2² = 1973396111 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1973396111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2435887 + ... + 2436696.

Almost surely, 2^1973396115 is an apocalyptic number.

1973396115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1973396115 is a deficient number, since it is larger than the sum of its proper divisors (1564099869).

1973396115 is an equidigital number, since it uses as much as digits as its factorization.

1973396115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872600 (or 4872591 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 1973396115 is about 44422.9233054287. The cubic root of 1973396115 is about 1254.3096291350.

The spelling of 1973396115 in words is "one billion, nine hundred seventy-three million, three hundred ninety-six thousand, one hundred fifteen".