607215997 has 2 divisors, whose sum is σ = 607215998. Its totient is φ = 607215996.

The previous prime is 607215977. The next prime is 607216019. The reversal of 607215997 is 799512706.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 603734041 + 3481956 = 24571^2 + 1866^2 .

It is a cyclic number.

It is not a de Polignac number, because 607215997 - 2¹¹ = 607213949 is a prime.

It is a super-2 number, since 2×607215997² = 737422534025408018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (607215907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303607998 + 303607999.

It is an arithmetic number, because the mean of its divisors is an integer number (303607999).

Almost surely, 2^607215997 is an apocalyptic number.

It is an amenable number.

607215997 is a deficient number, since it is larger than the sum of its proper divisors (1).

607215997 is an equidigital number, since it uses as much as digits as its factorization.

607215997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 607215997 is about 24641.7531235097. The cubic root of 607215997 is about 846.8004266284.

The spelling of 607215997 in words is "six hundred seven million, two hundred fifteen thousand, nine hundred ninety-seven".