736671816 has 24 divisors (see below), whose sum is σ = 1995153030. Its totient is φ = 245557248.

The previous prime is 736671811. The next prime is 736671827. The reversal of 736671816 is 618176637.

It can be written as a sum of positive squares in only one way, i.e., 708092100 + 28579716 = 26610^2 + 5346^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (736671811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5115705 + ... + 5115848.

Almost surely, 2^736671816 is an apocalyptic number.

It is an amenable number.

736671816 is an abundant number, since it is smaller than the sum of its proper divisors (1258481214).

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

736671816 is a wasteful number, since it uses less digits than its factorization.

736671816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231565 (or 10231558 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 736671816 is about 27141.6988414506. The cubic root of 736671816 is about 903.1461152872.

It can be divided in two parts, 73 and 6671816, that added together give a square (6671889 = 2583²).

The spelling of 736671816 in words is "seven hundred thirty-six million, six hundred seventy-one thousand, eight hundred sixteen".