734861021 has 4 divisors (see below), whose sum is σ = 735583200. Its totient is φ = 734138844.

The previous prime is 734861011. The next prime is 734861041. The reversal of 734861021 is 120168437.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 734861021 - 2¹⁴ = 734844637 is a prime.

It is a super-3 number, since 3×734861021³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734861011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359561 + ... + 361598.

It is an arithmetic number, because the mean of its divisors is an integer number (183895800).

Almost surely, 2^734861021 is an apocalyptic number.

It is an amenable number.

734861021 is a deficient number, since it is larger than the sum of its proper divisors (722179).

734861021 is a wasteful number, since it uses less digits than its factorization.

734861021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722178.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 734861021 is about 27108.3201434541. The cubic root of 734861021 is about 902.4055076623.

The spelling of 734861021 in words is "seven hundred thirty-four million, eight hundred sixty-one thousand, twenty-one".