42479677 has 2 divisors, whose sum is σ = 42479678. Its totient is φ = 42479676.

The previous prime is 42479669. The next prime is 42479683. The reversal of 42479677 is 77697424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39677401 + 2802276 = 6299^2 + 1674^2 .

It is a cyclic number.

It is not a de Polignac number, because 42479677 - 2³ = 42479669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42479627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21239838 + 21239839.

It is an arithmetic number, because the mean of its divisors is an integer number (21239839).

Almost surely, 2^42479677 is an apocalyptic number.

It is an amenable number.

42479677 is a deficient number, since it is larger than the sum of its proper divisors (1).

42479677 is an equidigital number, since it uses as much as digits as its factorization.

42479677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 46.

The square root of 42479677 is about 6517.6435158729. The cubic root of 42479677 is about 348.9209679747.

It can be divided in two parts, 4247 and 9677, that added together give a square (13924 = 118²).

The spelling of 42479677 in words is "forty-two million, four hundred seventy-nine thousand, six hundred seventy-seven".