730695816 has 40 divisors (see below), whose sum is σ = 2046626670. Its totient is φ = 243565056.

The previous prime is 730695811. The next prime is 730695817. The reversal of 730695816 is 618596037.

It is a happy number.

730695816 is a `hidden beast` number, since 7 + 3 + 0 + 69 + 581 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 648720900 + 81974916 = 25470^2 + 9054^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730695811) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 563161 + ... + 564456.

Almost surely, 2^730695816 is an apocalyptic number.

It is an amenable number.

730695816 is an abundant number, since it is smaller than the sum of its proper divisors (1315930854).

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

730695816 is a wasteful number, since it uses less digits than its factorization.

730695816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127635 (or 1127622 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 730695816 is about 27031.3857580406. The cubic root of 730695816 is about 900.6973262339.

The spelling of 730695816 in words is "seven hundred thirty million, six hundred ninety-five thousand, eight hundred sixteen".