754426921 has 2 divisors, whose sum is σ = 754426922. Its totient is φ = 754426920.

The previous prime is 754426903. The next prime is 754426973. The reversal of 754426921 is 129624457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521437225 + 232989696 = 22835^2 + 15264^2 .

It is a cyclic number.

It is not a de Polignac number, because 754426921 - 2¹³ = 754418729 is a prime.

It is a super-3 number, since 3×754426921³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (754426991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377213460 + 377213461.

It is an arithmetic number, because the mean of its divisors is an integer number (377213461).

Almost surely, 2^754426921 is an apocalyptic number.

It is an amenable number.

754426921 is a deficient number, since it is larger than the sum of its proper divisors (1).

754426921 is an equidigital number, since it uses as much as digits as its factorization.

754426921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 754426921 is about 27466.8331083145. The cubic root of 754426921 is about 910.3444017015.

The spelling of 754426921 in words is "seven hundred fifty-four million, four hundred twenty-six thousand, nine hundred twenty-one".