34877561 has 2 divisors, whose sum is σ = 34877562. Its totient is φ = 34877560.

The previous prime is 34877539. The next prime is 34877567. The reversal of 34877561 is 16577843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21335161 + 13542400 = 4619^2 + 3680^2 .

It is a cyclic number.

It is not a de Polignac number, because 34877561 - 2⁶ = 34877497 is a prime.

It is a super-2 number, since 2×34877561² = 2432888522617442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (34877567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17438780 + 17438781.

It is an arithmetic number, because the mean of its divisors is an integer number (17438781).

Almost surely, 2^34877561 is an apocalyptic number.

It is an amenable number.

34877561 is a deficient number, since it is larger than the sum of its proper divisors (1).

34877561 is an equidigital number, since it uses as much as digits as its factorization.

34877561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 34877561 is about 5905.7227330785. The cubic root of 34877561 is about 326.7247509978.

The spelling of 34877561 in words is "thirty-four million, eight hundred seventy-seven thousand, five hundred sixty-one".