754941921 has 4 divisors (see below), whose sum is σ = 1006589232. Its totient is φ = 503294612.

The previous prime is 754941919. The next prime is 754941923. The reversal of 754941921 is 129149457.

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 an interprime number because it is at equal distance from previous prime (754941919) and next prime (754941923).

It is a cyclic number.

It is not a de Polignac number, because 754941921 - 2¹ = 754941919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (754941923) 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, 125823651 + ... + 125823656.

It is an arithmetic number, because the mean of its divisors is an integer number (251647308).

Almost surely, 2^754941921 is an apocalyptic number.

It is an amenable number.

754941921 is a deficient number, since it is larger than the sum of its proper divisors (251647311).

754941921 is a wasteful number, since it uses less digits than its factorization.

754941921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251647310.

The product of its digits is 90720, while the sum is 42.

The square root of 754941921 is about 27476.2064521287. The cubic root of 754941921 is about 910.5514996167.

The spelling of 754941921 in words is "seven hundred fifty-four million, nine hundred forty-one thousand, nine hundred twenty-one".