1082377421 has 2 divisors, whose sum is σ = 1082377422. Its totient is φ = 1082377420.

The previous prime is 1082377399. The next prime is 1082377423. The reversal of 1082377421 is 1247732801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927872521 + 154504900 = 30461^2 + 12430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1082377421 - 2⁶ = 1082377357 is a prime.

It is a super-2 number, since 2×1082377421² = 2343081762981222482, which contains 22 as substring.

Together with 1082377423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1082377423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541188710 + 541188711.

It is an arithmetic number, because the mean of its divisors is an integer number (541188711).

Almost surely, 2^1082377421 is an apocalyptic number.

It is an amenable number.

1082377421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1082377421 is an equidigital number, since it uses as much as digits as its factorization.

1082377421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1082377421 is about 32899.5048746938. The cubic root of 1082377421 is about 1026.7378556617.

The spelling of 1082377421 in words is "one billion, eighty-two million, three hundred seventy-seven thousand, four hundred twenty-one".