674567953 has 2 divisors, whose sum is σ = 674567954. Its totient is φ = 674567952.

The previous prime is 674567921. The next prime is 674567969. The reversal of 674567953 is 359765476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647600704 + 26967249 = 25448^2 + 5193^2 .

It is a cyclic number.

It is not a de Polignac number, because 674567953 - 2⁵ = 674567921 is a prime.

It is a super-2 number, since 2×674567953² = 910083846429220418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 674567953.

It is not a weakly prime, because it can be changed into another prime (674567053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337283976 + 337283977.

It is an arithmetic number, because the mean of its divisors is an integer number (337283977).

Almost surely, 2^674567953 is an apocalyptic number.

It is an amenable number.

674567953 is a deficient number, since it is larger than the sum of its proper divisors (1).

674567953 is an equidigital number, since it uses as much as digits as its factorization.

674567953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4762800, while the sum is 52.

The square root of 674567953 is about 25972.4460342109. The cubic root of 674567953 is about 877.0181240233.

The spelling of 674567953 in words is "six hundred seventy-four million, five hundred sixty-seven thousand, nine hundred fifty-three".