67764490 has 8 divisors (see below), whose sum is σ = 121976100. Its totient is φ = 27105792.

The previous prime is 67764467. The next prime is 67764527. The reversal of 67764490 is 9446776.

It can be written as a sum of positive squares in 2 ways, for example, as 67749361 + 15129 = 8231^2 + 123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×67764490² = 9184052209920200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3388215 + ... + 3388234.

Almost surely, 2^67764490 is an apocalyptic number.

67764490 is a deficient number, since it is larger than the sum of its proper divisors (54211610).

67764490 is a wasteful number, since it uses less digits than its factorization.

67764490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776456.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 67764490 is about 8231.9189743340. The cubic root of 67764490 is about 407.6937540729.

The spelling of 67764490 in words is "sixty-seven million, seven hundred sixty-four thousand, four hundred ninety".